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-rw-r--r--src/backend/libpq/pqsignal.c295
-rw-r--r--src/backend/port/win32/Makefile4
-rw-r--r--src/backend/port/win32/sema.c17
-rw-r--r--src/backend/port/win32/signal.c300
-rw-r--r--src/backend/port/win32/socket.c434
-rw-r--r--src/backend/postmaster/pgstat.c38
-rw-r--r--src/backend/postmaster/postmaster.c35
-rw-r--r--src/include/libpq/pqsignal.h22
-rw-r--r--src/include/miscadmin.h5
-rw-r--r--src/include/port/win32.h47
-rw-r--r--src/port/pgsleep.c8
11 files changed, 831 insertions, 374 deletions
diff --git a/src/backend/libpq/pqsignal.c b/src/backend/libpq/pqsignal.c
index 34e5883797e..dc1f6ccc087 100644
--- a/src/backend/libpq/pqsignal.c
+++ b/src/backend/libpq/pqsignal.c
@@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/libpq/pqsignal.c,v 1.32 2004/02/18 16:25:12 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/libpq/pqsignal.c,v 1.33 2004/04/12 16:19:18 momjian Exp $
*
* NOTES
* This shouldn't be in libpq, but the monitor and some other
@@ -38,9 +38,6 @@
* is to do signal-handler reinstallation, which doesn't work well
* at all.
* ------------------------------------------------------------------------*/
-#ifdef WIN32
-#define _WIN32_WINNT 0x0400
-#endif
#include "postgres.h"
@@ -131,7 +128,9 @@ pqinitmask(void)
}
+/* Win32 signal handling is in backend/port/win32/signal.c */
#ifndef WIN32
+
/*
* Set up a signal handler
*/
@@ -154,290 +153,4 @@ pqsignal(int signo, pqsigfunc func)
return oact.sa_handler;
#endif /* !HAVE_POSIX_SIGNALS */
}
-
-
-#else
-
-
-/* Win32 specific signals code */
-
-/* pg_signal_crit_sec is used to protect only pg_signal_queue. That is the only
- * variable that can be accessed from the signal sending threads! */
-static CRITICAL_SECTION pg_signal_crit_sec;
-static int pg_signal_queue;
-
-#define PG_SIGNAL_COUNT 32
-static pqsigfunc pg_signal_array[PG_SIGNAL_COUNT];
-static pqsigfunc pg_signal_defaults[PG_SIGNAL_COUNT];
-static int pg_signal_mask;
-
-HANDLE pgwin32_main_thread_handle;
-
-/* Signal handling thread function */
-static DWORD WINAPI pg_signal_thread(LPVOID param);
-static BOOL WINAPI pg_console_handler(DWORD dwCtrlType);
-
-/* Initialization */
-void
-pgwin32_signal_initialize(void)
-{
- int i;
- HANDLE signal_thread_handle;
-
- InitializeCriticalSection(&pg_signal_crit_sec);
-
- for (i = 0; i < PG_SIGNAL_COUNT; i++)
- {
- pg_signal_array[i] = SIG_DFL;
- pg_signal_defaults[i] = SIG_IGN;
- }
- pg_signal_mask = 0;
- pg_signal_queue = 0;
-
- /* Get handle to main thread so we can post calls to it later */
- if (!DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
- GetCurrentProcess(), &pgwin32_main_thread_handle,
- 0, FALSE, DUPLICATE_SAME_ACCESS))
- ereport(FATAL,
- (errmsg_internal("Failed to get main thread handle!")));
-
- /* Create thread for handling signals */
- signal_thread_handle = CreateThread(NULL, 0, pg_signal_thread, NULL, 0, NULL);
- if (signal_thread_handle == NULL)
- ereport(FATAL,
- (errmsg_internal("Failed to create signal handler thread!")));
-
- if (!SetConsoleCtrlHandler(pg_console_handler, TRUE))
- ereport(FATAL,
- (errmsg_internal("Failed to set console control handler!")));
-}
-
-
-/* Dispatch all signals currently queued and not blocked
- * Blocked signals are ignored, and will be fired at the time of
- * the sigsetmask() call. */
-static void
-dispatch_queued_signals(void)
-{
- int i;
-
- EnterCriticalSection(&pg_signal_crit_sec);
- while (pg_signal_queue & ~pg_signal_mask)
- {
- /* One or more unblocked signals queued for execution */
-
- int exec_mask = pg_signal_queue & ~pg_signal_mask;
-
- for (i = 0; i < PG_SIGNAL_COUNT; i++)
- {
- if (exec_mask & sigmask(i))
- {
- /* Execute this signal */
- pqsigfunc sig = pg_signal_array[i];
-
- if (sig == SIG_DFL)
- sig = pg_signal_defaults[i];
- pg_signal_queue &= ~sigmask(i);
- if (sig != SIG_ERR && sig != SIG_IGN && sig != SIG_DFL)
- {
- LeaveCriticalSection(&pg_signal_crit_sec);
- sig(i);
- EnterCriticalSection(&pg_signal_crit_sec);
- break; /* Restart outer loop, in case signal mask
- * or queue has been modified inside
- * signal handler */
- }
- }
- }
- }
- LeaveCriticalSection(&pg_signal_crit_sec);
-}
-
-/* signal masking. Only called on main thread, no sync required */
-int
-pqsigsetmask(int mask)
-{
- int prevmask;
-
- prevmask = pg_signal_mask;
- pg_signal_mask = mask;
-
- /*
- * Dispatch any signals queued up right away, in case we have
- * unblocked one or more signals previously queued
- */
- dispatch_queued_signals();
-
- return prevmask;
-}
-
-
-/* signal manipulation. Only called on main thread, no sync required */
-pqsigfunc
-pqsignal(int signum, pqsigfunc handler)
-{
- pqsigfunc prevfunc;
-
- if (signum >= PG_SIGNAL_COUNT || signum < 0)
- return SIG_ERR;
- prevfunc = pg_signal_array[signum];
- pg_signal_array[signum] = handler;
- return prevfunc;
-}
-
-/* signal sending */
-int
-pqkill(int pid, int sig)
-{
- char pipename[128];
- BYTE sigData = sig;
- BYTE sigRet = 0;
- DWORD bytes;
-
- if (sig >= PG_SIGNAL_COUNT || sig <= 0)
- {
- errno = EINVAL;
- return -1;
- }
- if (pid <= 0)
- {
- /* No support for process groups */
- errno = EINVAL;
- return -1;
- }
- wsprintf(pipename, "\\\\.\\pipe\\pgsignal_%i", pid);
- if (!CallNamedPipe(pipename, &sigData, 1, &sigRet, 1, &bytes, 1000))
- {
- if (GetLastError() == ERROR_FILE_NOT_FOUND)
- errno = ESRCH;
- else if (GetLastError() == ERROR_ACCESS_DENIED)
- errno = EPERM;
- else
- errno = EINVAL;
- return -1;
- }
- if (bytes != 1 || sigRet != sig)
- {
- errno = ESRCH;
- return -1;
- }
-
- return 0;
-}
-
-/* APC callback scheduled on main thread when signals are fired */
-static void CALLBACK
-pg_signal_apc(ULONG_PTR param)
-{
- dispatch_queued_signals();
-}
-
-/*
- * All functions below execute on the signal handler thread
- * and must be synchronized as such!
- * NOTE! The only global variable that can be used is
- * pg_signal_queue!
- */
-
-
-void
-pg_queue_signal(int signum)
-{
- if (signum >= PG_SIGNAL_COUNT || signum < 0)
- return;
-
- EnterCriticalSection(&pg_signal_crit_sec);
- pg_signal_queue |= sigmask(signum);
- LeaveCriticalSection(&pg_signal_crit_sec);
-
- QueueUserAPC(pg_signal_apc, pgwin32_main_thread_handle, (ULONG_PTR) NULL);
-}
-
-/* Signal dispatching thread */
-static DWORD WINAPI
-pg_signal_dispatch_thread(LPVOID param)
-{
- HANDLE pipe = (HANDLE) param;
- BYTE sigNum;
- DWORD bytes;
-
- if (!ReadFile(pipe, &sigNum, 1, &bytes, NULL))
- {
- /* Client died before sending */
- CloseHandle(pipe);
- return 0;
- }
- if (bytes != 1)
- {
- /* Received <bytes> bytes over signal pipe (should be 1) */
- CloseHandle(pipe);
- return 0;
- }
- WriteFile(pipe, &sigNum, 1, &bytes, NULL); /* Don't care if it works
- * or not.. */
- FlushFileBuffers(pipe);
- DisconnectNamedPipe(pipe);
- CloseHandle(pipe);
-
- pg_queue_signal(sigNum);
- return 0;
-}
-
-/* Signal handling thread */
-static DWORD WINAPI
-pg_signal_thread(LPVOID param)
-{
- char pipename[128];
- HANDLE pipe = INVALID_HANDLE_VALUE;
-
- wsprintf(pipename, "\\\\.\\pipe\\pgsignal_%i", GetCurrentProcessId());
-
- for (;;)
- {
- BOOL fConnected;
- HANDLE hThread;
-
- pipe = CreateNamedPipe(pipename, PIPE_ACCESS_DUPLEX,
- PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,
- PIPE_UNLIMITED_INSTANCES, 16, 16, 1000, NULL);
- if (pipe == INVALID_HANDLE_VALUE)
- {
- fprintf(stderr, gettext("Failed to create signal listener pipe: %i. Retrying.\n"), (int) GetLastError());
- SleepEx(500, TRUE);
- continue;
- }
-
- fConnected = ConnectNamedPipe(pipe, NULL) ? TRUE : (GetLastError() == ERROR_PIPE_CONNECTED);
- if (fConnected)
- {
- hThread = CreateThread(NULL, 0,
- (LPTHREAD_START_ROUTINE) pg_signal_dispatch_thread,
- (LPVOID) pipe, 0, NULL);
- if (hThread == INVALID_HANDLE_VALUE)
- fprintf(stderr, gettext("Failed to create signal dispatch thread: %i\n"), (int) GetLastError());
- else
- CloseHandle(hThread);
- }
- else
- /* Connection failed. Cleanup and try again */
- CloseHandle(pipe);
- }
- return 0;
-}
-
-
-/* Console control handler will execute on a thread created
- by the OS at the time of invocation */
-static BOOL WINAPI pg_console_handler(DWORD dwCtrlType) {
- if (dwCtrlType == CTRL_C_EVENT ||
- dwCtrlType == CTRL_BREAK_EVENT ||
- dwCtrlType == CTRL_CLOSE_EVENT ||
- dwCtrlType == CTRL_SHUTDOWN_EVENT) {
- pg_queue_signal(SIGINT);
- return TRUE;
- }
- return FALSE;
-}
-
-
-#endif
+#endif /* WIN32 */
diff --git a/src/backend/port/win32/Makefile b/src/backend/port/win32/Makefile
index 16f6c75bc42..0d5b64ce364 100644
--- a/src/backend/port/win32/Makefile
+++ b/src/backend/port/win32/Makefile
@@ -4,7 +4,7 @@
# Makefile for port/win32
#
# IDENTIFICATION
-# $PostgreSQL: pgsql/src/backend/port/win32/Makefile,v 1.3 2004/02/18 16:25:12 momjian Exp $
+# $PostgreSQL: pgsql/src/backend/port/win32/Makefile,v 1.4 2004/04/12 16:19:18 momjian Exp $
#
#-------------------------------------------------------------------------
@@ -12,7 +12,7 @@ subdir = src/backend/port/win32
top_builddir = ../../../..
include $(top_builddir)/src/Makefile.global
-OBJS = sema.o shmem.o timer.o
+OBJS = sema.o shmem.o timer.o socket.o signal.o
all: SUBSYS.o
diff --git a/src/backend/port/win32/sema.c b/src/backend/port/win32/sema.c
index cee91d62c7e..3a2fb61030b 100644
--- a/src/backend/port/win32/sema.c
+++ b/src/backend/port/win32/sema.c
@@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/port/win32/sema.c,v 1.5 2004/02/12 20:37:34 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/port/win32/sema.c,v 1.6 2004/04/12 16:19:18 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -228,11 +228,12 @@ semop(int semId, struct sembuf * sops, int nsops)
if (sops[0].sem_op == -1)
{
DWORD ret;
+ HANDLE wh[2];
- if (sops[0].sem_flg & IPC_NOWAIT)
- ret = WaitForSingleObject(cur_handle, 0);
- else
- ret = WaitForSingleObject(cur_handle, INFINITE);
+ wh[0] = cur_handle;
+ wh[1] = pgwin32_signal_event;
+
+ ret = WaitForMultipleObjects(2, wh, FALSE, (sops[0].sem_flg & IPC_NOWAIT)?0:INFINITE);
if (ret == WAIT_OBJECT_0)
{
@@ -240,6 +241,12 @@ semop(int semId, struct sembuf * sops, int nsops)
sem_counts[sops[0].sem_num]--;
return 0;
}
+ else if (ret == WAIT_OBJECT_0+1)
+ {
+ /* Signal event is set - we have a signal to deliver */
+ pgwin32_dispatch_queued_signals();
+ errno = EINTR;
+ }
else if (ret == WAIT_TIMEOUT)
/* Couldn't get it */
errno = EAGAIN;
diff --git a/src/backend/port/win32/signal.c b/src/backend/port/win32/signal.c
new file mode 100644
index 00000000000..280f10da23d
--- /dev/null
+++ b/src/backend/port/win32/signal.c
@@ -0,0 +1,300 @@
+/*-------------------------------------------------------------------------
+ *
+ * signal.c
+ * Microsoft Windows Win32 Signal Emulation Functions
+ *
+ * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
+ *
+ * IDENTIFICATION
+ * $PostgreSQL: pgsql/src/backend/port/win32/signal.c,v 1.1 2004/04/12 16:19:18 momjian Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+
+#include "postgres.h"
+
+#include <libpq/pqsignal.h>
+
+
+/* pg_signal_crit_sec is used to protect only pg_signal_queue. That is the only
+ * variable that can be accessed from the signal sending threads! */
+static CRITICAL_SECTION pg_signal_crit_sec;
+static int pg_signal_queue;
+
+#define PG_SIGNAL_COUNT 32
+static pqsigfunc pg_signal_array[PG_SIGNAL_COUNT];
+static pqsigfunc pg_signal_defaults[PG_SIGNAL_COUNT];
+static int pg_signal_mask;
+
+DLLIMPORT HANDLE pgwin32_signal_event;
+
+
+/* Signal handling thread function */
+static DWORD WINAPI pg_signal_thread(LPVOID param);
+static BOOL WINAPI pg_console_handler(DWORD dwCtrlType);
+
+/* Sleep function that can be interrupted by signals */
+void pgwin32_backend_usleep(long microsec) {
+ if (WaitForSingleObject(pgwin32_signal_event, (microsec < 500 ? 1 : (microsec + 500) / 1000)) == WAIT_OBJECT_0) {
+ pgwin32_dispatch_queued_signals();
+ errno = EINTR;
+ return;
+ }
+}
+
+
+/* Initialization */
+void
+pgwin32_signal_initialize(void)
+{
+ int i;
+ HANDLE signal_thread_handle;
+
+ InitializeCriticalSection(&pg_signal_crit_sec);
+
+ for (i = 0; i < PG_SIGNAL_COUNT; i++)
+ {
+ pg_signal_array[i] = SIG_DFL;
+ pg_signal_defaults[i] = SIG_IGN;
+ }
+ pg_signal_mask = 0;
+ pg_signal_queue = 0;
+
+ /* Create the global event handle used to flag signals */
+ pgwin32_signal_event = CreateEvent(NULL, TRUE, FALSE, NULL);
+ if (pgwin32_signal_event == NULL)
+ ereport(FATAL,
+ (errmsg_internal("Failed to create signal event: %i!",(int)GetLastError())));
+
+ /* Create thread for handling signals */
+ signal_thread_handle = CreateThread(NULL, 0, pg_signal_thread, NULL, 0, NULL);
+ if (signal_thread_handle == NULL)
+ ereport(FATAL,
+ (errmsg_internal("Failed to create signal handler thread!")));
+
+ /* Create console control handle to pick up Ctrl-C etc */
+ if (!SetConsoleCtrlHandler(pg_console_handler, TRUE))
+ ereport(FATAL,
+ (errmsg_internal("Failed to set console control handler!")));
+}
+
+
+/* Dispatch all signals currently queued and not blocked
+ * Blocked signals are ignored, and will be fired at the time of
+ * the sigsetmask() call. */
+void
+pgwin32_dispatch_queued_signals(void)
+{
+ int i;
+
+ EnterCriticalSection(&pg_signal_crit_sec);
+ while (pg_signal_queue & ~pg_signal_mask)
+ {
+ /* One or more unblocked signals queued for execution */
+
+ int exec_mask = pg_signal_queue & ~pg_signal_mask;
+
+ for (i = 0; i < PG_SIGNAL_COUNT; i++)
+ {
+ if (exec_mask & sigmask(i))
+ {
+ /* Execute this signal */
+ pqsigfunc sig = pg_signal_array[i];
+
+ if (sig == SIG_DFL)
+ sig = pg_signal_defaults[i];
+ pg_signal_queue &= ~sigmask(i);
+ if (sig != SIG_ERR && sig != SIG_IGN && sig != SIG_DFL)
+ {
+ LeaveCriticalSection(&pg_signal_crit_sec);
+ sig(i);
+ EnterCriticalSection(&pg_signal_crit_sec);
+ break; /* Restart outer loop, in case signal mask
+ * or queue has been modified inside
+ * signal handler */
+ }
+ }
+ }
+ }
+ ResetEvent(pgwin32_signal_event);
+ LeaveCriticalSection(&pg_signal_crit_sec);
+}
+
+/* signal masking. Only called on main thread, no sync required */
+int
+pqsigsetmask(int mask)
+{
+ int prevmask;
+
+ prevmask = pg_signal_mask;
+ pg_signal_mask = mask;
+
+ /*
+ * Dispatch any signals queued up right away, in case we have
+ * unblocked one or more signals previously queued
+ */
+ pgwin32_dispatch_queued_signals();
+
+ return prevmask;
+}
+
+
+/* signal manipulation. Only called on main thread, no sync required */
+pqsigfunc
+pqsignal(int signum, pqsigfunc handler)
+{
+ pqsigfunc prevfunc;
+
+ if (signum >= PG_SIGNAL_COUNT || signum < 0)
+ return SIG_ERR;
+ prevfunc = pg_signal_array[signum];
+ pg_signal_array[signum] = handler;
+ return prevfunc;
+}
+
+/* signal sending */
+int
+pqkill(int pid, int sig)
+{
+ char pipename[128];
+ BYTE sigData = sig;
+ BYTE sigRet = 0;
+ DWORD bytes;
+
+ if (sig >= PG_SIGNAL_COUNT || sig <= 0)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+ if (pid <= 0)
+ {
+ /* No support for process groups */
+ errno = EINVAL;
+ return -1;
+ }
+ wsprintf(pipename, "\\\\.\\pipe\\pgsignal_%i", pid);
+ if (!CallNamedPipe(pipename, &sigData, 1, &sigRet, 1, &bytes, 1000))
+ {
+ if (GetLastError() == ERROR_FILE_NOT_FOUND)
+ errno = ESRCH;
+ else if (GetLastError() == ERROR_ACCESS_DENIED)
+ errno = EPERM;
+ else
+ errno = EINVAL;
+ return -1;
+ }
+ if (bytes != 1 || sigRet != sig)
+ {
+ errno = ESRCH;
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * All functions below execute on the signal handler thread
+ * and must be synchronized as such!
+ * NOTE! The only global variable that can be used is
+ * pg_signal_queue!
+ */
+
+
+void
+pg_queue_signal(int signum)
+{
+ if (signum >= PG_SIGNAL_COUNT || signum < 0)
+ return;
+
+ EnterCriticalSection(&pg_signal_crit_sec);
+ pg_signal_queue |= sigmask(signum);
+ LeaveCriticalSection(&pg_signal_crit_sec);
+
+ SetEvent(pgwin32_signal_event);
+}
+
+/* Signal dispatching thread */
+static DWORD WINAPI
+pg_signal_dispatch_thread(LPVOID param)
+{
+ HANDLE pipe = (HANDLE) param;
+ BYTE sigNum;
+ DWORD bytes;
+
+ if (!ReadFile(pipe, &sigNum, 1, &bytes, NULL))
+ {
+ /* Client died before sending */
+ CloseHandle(pipe);
+ return 0;
+ }
+ if (bytes != 1)
+ {
+ /* Received <bytes> bytes over signal pipe (should be 1) */
+ CloseHandle(pipe);
+ return 0;
+ }
+ WriteFile(pipe, &sigNum, 1, &bytes, NULL); /* Don't care if it works
+ * or not.. */
+ FlushFileBuffers(pipe);
+ DisconnectNamedPipe(pipe);
+ CloseHandle(pipe);
+
+ pg_queue_signal(sigNum);
+ return 0;
+}
+
+/* Signal handling thread */
+static DWORD WINAPI
+pg_signal_thread(LPVOID param)
+{
+ char pipename[128];
+ HANDLE pipe = INVALID_HANDLE_VALUE;
+
+ wsprintf(pipename, "\\\\.\\pipe\\pgsignal_%i", GetCurrentProcessId());
+
+ for (;;)
+ {
+ BOOL fConnected;
+ HANDLE hThread;
+
+ pipe = CreateNamedPipe(pipename, PIPE_ACCESS_DUPLEX,
+ PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,
+ PIPE_UNLIMITED_INSTANCES, 16, 16, 1000, NULL);
+ if (pipe == INVALID_HANDLE_VALUE)
+ {
+ fprintf(stderr, gettext("Failed to create signal listener pipe: %i. Retrying.\n"), (int) GetLastError());
+ SleepEx(500, FALSE);
+ continue;
+ }
+
+ fConnected = ConnectNamedPipe(pipe, NULL) ? TRUE : (GetLastError() == ERROR_PIPE_CONNECTED);
+ if (fConnected)
+ {
+ hThread = CreateThread(NULL, 0,
+ (LPTHREAD_START_ROUTINE) pg_signal_dispatch_thread,
+ (LPVOID) pipe, 0, NULL);
+ if (hThread == INVALID_HANDLE_VALUE)
+ fprintf(stderr, gettext("Failed to create signal dispatch thread: %i\n"), (int) GetLastError());
+ else
+ CloseHandle(hThread);
+ }
+ else
+ /* Connection failed. Cleanup and try again */
+ CloseHandle(pipe);
+ }
+ return 0;
+}
+
+
+/* Console control handler will execute on a thread created
+ by the OS at the time of invocation */
+static BOOL WINAPI pg_console_handler(DWORD dwCtrlType) {
+ if (dwCtrlType == CTRL_C_EVENT ||
+ dwCtrlType == CTRL_BREAK_EVENT ||
+ dwCtrlType == CTRL_CLOSE_EVENT ||
+ dwCtrlType == CTRL_SHUTDOWN_EVENT) {
+ pg_queue_signal(SIGINT);
+ return TRUE;
+ }
+ return FALSE;
+}
diff --git a/src/backend/port/win32/socket.c b/src/backend/port/win32/socket.c
new file mode 100644
index 00000000000..878e7a276f4
--- /dev/null
+++ b/src/backend/port/win32/socket.c
@@ -0,0 +1,434 @@
+/*-------------------------------------------------------------------------
+ *
+ * socket.c
+ * Microsoft Windows Win32 Socket Functions
+ *
+ * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
+ *
+ * IDENTIFICATION
+ * $PostgreSQL: pgsql/src/backend/port/win32/socket.c,v 1.1 2004/04/12 16:19:18 momjian Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+
+#include "postgres.h"
+
+#undef socket
+#undef accept
+#undef connect
+#undef select
+#undef recv
+#undef send
+
+/*
+ * Blocking socket functions implemented so they listen on both
+ * the socket and the signal event, required for signal handling.
+ */
+
+/*
+ * Convert the last socket error code into errno
+ */
+static void TranslateSocketError(void) {
+ switch (WSAGetLastError()) {
+ case WSANOTINITIALISED:
+ case WSAENETDOWN:
+ case WSAEINPROGRESS:
+ case WSAEINVAL:
+ case WSAESOCKTNOSUPPORT:
+ case WSAEFAULT:
+ case WSAEINVALIDPROVIDER:
+ case WSAEINVALIDPROCTABLE:
+ case WSAEMSGSIZE:
+ errno = EINVAL;
+ break;
+ case WSAEAFNOSUPPORT:
+ errno = EAFNOSUPPORT;
+ break;
+ case WSAEMFILE:
+ errno = EMFILE;
+ break;
+ case WSAENOBUFS:
+ errno = ENOBUFS;
+ break;
+ case WSAEPROTONOSUPPORT:
+ case WSAEPROTOTYPE:
+ errno = EPROTONOSUPPORT;
+ break;
+ case WSAECONNREFUSED:
+ errno = ECONNREFUSED;
+ break;
+ case WSAEINTR:
+ errno = EINTR;
+ break;
+ case WSAENOTSOCK:
+ errno = EBADFD;
+ break;
+ case WSAEOPNOTSUPP:
+ errno = EOPNOTSUPP;
+ break;
+ case WSAEWOULDBLOCK:
+ errno = EWOULDBLOCK;
+ break;
+ case WSAEACCES:
+ errno = EACCES;
+ break;
+ case WSAENOTCONN:
+ case WSAENETRESET:
+ case WSAECONNRESET:
+ case WSAESHUTDOWN:
+ case WSAECONNABORTED:
+ case WSAEDISCON:
+ errno = ECONNREFUSED; /*ENOTCONN?*/
+ break;
+ default:
+ ereport(NOTICE,
+ (errmsg_internal("Unknown win32 socket error code: %i",WSAGetLastError())));
+ errno = EINVAL;
+ }
+}
+
+static int pgwin32_poll_signals(void) {
+ if (WaitForSingleObject(pgwin32_signal_event,0) == WAIT_OBJECT_0) {
+ pgwin32_dispatch_queued_signals();
+ errno = EINTR;
+ return 1;
+ }
+ return 0;
+}
+
+static int pgwin32_waitforsinglesocket(SOCKET s, int what) {
+ static HANDLE waitevent = INVALID_HANDLE_VALUE;
+ HANDLE events[2];
+ int r;
+
+ if (waitevent == INVALID_HANDLE_VALUE) {
+ waitevent = CreateEvent(NULL, TRUE, FALSE, NULL);
+
+ if (waitevent == INVALID_HANDLE_VALUE)
+ ereport(ERROR,
+ (errmsg_internal("Failed to create socket waiting event: %i",(int)GetLastError())));
+ }
+ else
+ if (!ResetEvent(waitevent))
+ ereport(ERROR,
+ (errmsg_internal("Failed to reset socket waiting event: %i",(int)GetLastError())));
+
+
+ if (WSAEventSelect(s, waitevent, what) == SOCKET_ERROR) {
+ TranslateSocketError();
+ return 0;
+ }
+
+ events[0] = pgwin32_signal_event;
+ events[1] = waitevent;
+ r = WaitForMultipleObjects(2, events, FALSE, INFINITE);
+
+ if (r == WAIT_OBJECT_0) {
+ pgwin32_dispatch_queued_signals();
+ errno = EINTR;
+ return 0;
+ }
+ if (r == WAIT_OBJECT_0+1)
+ return 1;
+ ereport(ERROR,
+ (errmsg_internal("Bad return from WaitForMultipleObjects: %i (%i)",r,(int)GetLastError())));
+ return 0;
+}
+
+/*
+ * Create a socket, setting it to overlapped and non-blocking
+ */
+SOCKET pgwin32_socket(int af, int type, int protocol) {
+ SOCKET s;
+ unsigned long on = 1;
+
+ s = WSASocket(af, type, protocol, NULL, 0, WSA_FLAG_OVERLAPPED);
+ if (s == INVALID_SOCKET) {
+ TranslateSocketError();
+ return INVALID_SOCKET;
+ }
+
+ if (ioctlsocket(s, FIONBIO, &on)) {
+ TranslateSocketError();
+ return INVALID_SOCKET;
+ }
+ errno = 0;
+
+ return s;
+}
+
+
+SOCKET pgwin32_accept(SOCKET s, struct sockaddr* addr, int* addrlen) {
+ SOCKET rs;
+
+ /* Poll for signals, but don't return with EINTR, since we don't
+ handle that in pqcomm.c */
+ pgwin32_poll_signals();
+
+ rs = WSAAccept(s, addr, addrlen, NULL, 0);
+ if (rs == INVALID_SOCKET) {
+ TranslateSocketError();
+ return INVALID_SOCKET;
+ }
+ return rs;
+}
+
+
+/* No signal delivery during connect. */
+int pgwin32_connect(SOCKET s, const struct sockaddr *addr, int addrlen) {
+ int r;
+
+ r = WSAConnect(s, addr, addrlen, NULL, NULL, NULL, NULL);
+ if (r == 0)
+ return 0;
+
+ if (WSAGetLastError() != WSAEWOULDBLOCK) {
+ TranslateSocketError();
+ return -1;
+ }
+
+ while (pgwin32_waitforsinglesocket(s, FD_CONNECT) == 0) {
+ /* Loop endlessly as long as we are just delivering signals */
+ }
+
+ return 0;
+}
+
+int pgwin32_recv(SOCKET s, char *buf, int len, int f) {
+ WSABUF wbuf;
+ int r;
+ DWORD b;
+ DWORD flags = f;
+
+ if (pgwin32_poll_signals())
+ return -1;
+
+ wbuf.len = len;
+ wbuf.buf = buf;
+
+ r = WSARecv(s, &wbuf, 1, &b, &flags, NULL, NULL);
+ if (r != SOCKET_ERROR && b > 0)
+ /* Read succeeded right away */
+ return b;
+
+ if (r == SOCKET_ERROR &&
+ WSAGetLastError() != WSAEWOULDBLOCK) {
+ TranslateSocketError();
+ return -1;
+ }
+
+ /* No error, zero bytes (win2000+) or error+WSAEWOULDBLOCK (<=nt4) */
+
+ if (pgwin32_waitforsinglesocket(s, FD_READ | FD_CLOSE | FD_ACCEPT) == 0)
+ return -1;
+
+ r = WSARecv(s, &wbuf, 1, &b, &flags, NULL, NULL);
+ if (r == SOCKET_ERROR) {
+ TranslateSocketError();
+ return -1;
+ }
+ return b;
+}
+
+int pgwin32_send(SOCKET s, char *buf, int len, int flags) {
+ WSABUF wbuf;
+ int r;
+ DWORD b;
+
+ if (pgwin32_poll_signals())
+ return -1;
+
+ wbuf.len = len;
+ wbuf.buf = buf;
+
+ r = WSASend(s, &wbuf, 1, &b, flags, NULL, NULL);
+ if (r != SOCKET_ERROR && b > 0)
+ /* Write succeeded right away */
+ return b;
+
+ if (r == SOCKET_ERROR &&
+ WSAGetLastError() != WSAEWOULDBLOCK) {
+ TranslateSocketError();
+ return -1;
+ }
+
+ /* No error, zero bytes (win2000+) or error+WSAEWOULDBLOCK (<=nt4) */
+
+ if (pgwin32_waitforsinglesocket(s, FD_WRITE | FD_CLOSE) == 0)
+ return -1;
+
+ r = WSASend(s, &wbuf, 1, &b, flags, NULL, NULL);
+ if (r == SOCKET_ERROR) {
+ TranslateSocketError();
+ return -1;
+ }
+ return b;
+}
+
+
+/*
+ * Wait for activity on one or more sockets.
+ * While waiting, allow signals to run
+ *
+ * NOTE! Currently does not implement exceptfds check,
+ * since it is not used in postgresql!
+ */
+int pgwin32_select(int nfds, fd_set* readfds, fd_set* writefds, fd_set* exceptfds, const struct timeval* timeout) {
+ WSAEVENT events[FD_SETSIZE*2]; /* worst case is readfds totally different
+ * from writefds, so 2*FD_SETSIZE sockets */
+ SOCKET sockets[FD_SETSIZE*2];
+ int numevents=0;
+ int i;
+ int r;
+ DWORD timeoutval = WSA_INFINITE;
+ FD_SET outreadfds;
+ FD_SET outwritefds;
+ int nummatches = 0;
+
+ Assert(exceptfds == NULL);
+
+ if (pgwin32_poll_signals())
+ return -1;
+
+ FD_ZERO(&outreadfds);
+ FD_ZERO(&outwritefds);
+
+ /* Write FDs are different in the way that it is only flagged by
+ * WSASelectEvent() if we have tried to write to them first. So try
+ * an empty write */
+ if (writefds) {
+ for (i = 0; i < writefds->fd_count; i++) {
+ char c;
+ WSABUF buf;
+ DWORD sent;
+
+ buf.buf = &c;
+ buf.len = 0;
+
+ r = WSASend(writefds->fd_array[i], &buf, 1, &sent, 0, NULL, NULL);
+ if (r == 0) /* Completed - means things are fine! */
+ FD_SET(writefds->fd_array[i], &outwritefds);
+ else { /* Not completed */
+ if (WSAGetLastError() != WSAEWOULDBLOCK)
+ /* Not completed, and not just "would block", so
+ * an error occured */
+ FD_SET(writefds->fd_array[i], &outwritefds);
+ }
+ }
+ if (outwritefds.fd_count > 0) {
+ memcpy(writefds,&outwritefds,sizeof(fd_set));
+ if (readfds)
+ FD_ZERO(readfds);
+ return outwritefds.fd_count;
+ }
+ }
+
+
+ /* Now set up for an actual select */
+
+ if (timeout != NULL) {
+ /* timeoutval is in milliseconds */
+ timeoutval = timeout->tv_sec*1000 + timeout->tv_usec / 1000;
+ }
+
+ if (readfds != NULL) {
+ for (i=0; i < readfds->fd_count; i++) {
+ events[numevents] = WSACreateEvent();
+ sockets[numevents] = readfds->fd_array[i];
+ numevents++;
+ }
+ }
+ if (writefds != NULL) {
+ for (i=0; i < writefds->fd_count; i++) {
+ if (!readfds ||
+ !FD_ISSET(writefds->fd_array[i], readfds)) {
+ /* If the socket is not in the read list */
+ events[numevents] = WSACreateEvent();
+ sockets[numevents] = writefds->fd_array[i];
+ numevents++;
+ }
+ }
+ }
+
+ for (i=0; i < numevents; i++) {
+ int flags = 0;
+
+ if (readfds && FD_ISSET(sockets[i],readfds))
+ flags |= FD_READ | FD_ACCEPT | FD_CLOSE;
+
+ if (writefds && FD_ISSET(sockets[i],writefds))
+ flags |= FD_WRITE | FD_CLOSE;
+
+ if (WSAEventSelect(sockets[i], events[i], flags) == SOCKET_ERROR) {
+ TranslateSocketError();
+ for (i = 0; i < numevents; i++)
+ WSACloseEvent(events[i]);
+ return -1;
+ }
+ }
+
+ events[numevents] = pgwin32_signal_event;
+ r = WaitForMultipleObjectsEx(numevents+1, events, FALSE, timeoutval, FALSE);
+ if (r != WSA_WAIT_TIMEOUT && r != (WAIT_OBJECT_0+numevents)) {
+ /* We scan all events, even those not signalled, in case more
+ * than one event has been tagged but Wait.. can only return one.
+ */
+ WSANETWORKEVENTS resEvents;
+
+ for (i=0; i < numevents; i++) {
+ ZeroMemory(&resEvents,sizeof(resEvents));
+ if (WSAEnumNetworkEvents(sockets[i],events[i],&resEvents) == SOCKET_ERROR)
+ ereport(FATAL,
+ (errmsg_internal("failed to enumerate network events: %i",(int)GetLastError())));
+ /* Read activity? */
+ if (readfds && FD_ISSET(sockets[i], readfds)) {
+ if ((resEvents.lNetworkEvents & FD_READ) ||
+ (resEvents.lNetworkEvents & FD_ACCEPT) ||
+ (resEvents.lNetworkEvents & FD_CLOSE)) {
+ FD_SET(sockets[i],&outreadfds);
+ nummatches++;
+ }
+ }
+ /* Write activity? */
+ if (writefds && FD_ISSET(sockets[i], writefds)) {
+ if ((resEvents.lNetworkEvents & FD_WRITE) ||
+ (resEvents.lNetworkEvents & FD_CLOSE)) {
+ FD_SET(sockets[i],&outwritefds);
+ nummatches++;
+ }
+ }
+ }
+ }
+
+ /* Clean up all handles */
+ for (i = 0; i < numevents; i++) {
+ WSAEventSelect(sockets[i], events[i], 0);
+ WSACloseEvent(events[i]);
+ }
+
+ if (r == WSA_WAIT_TIMEOUT) {
+ if (readfds)
+ FD_ZERO(readfds);
+ if (writefds)
+ FD_ZERO(writefds);
+ return 0;
+ }
+
+ if (r == WAIT_OBJECT_0+numevents) {
+ pgwin32_dispatch_queued_signals();
+ errno = EINTR;
+ if (readfds)
+ FD_ZERO(readfds);
+ if (writefds)
+ FD_ZERO(writefds);
+ return -1;
+ }
+
+ /* Overwrite socket sets with our resulting values */
+ if (readfds)
+ memcpy(readfds, &outreadfds, sizeof(fd_set));
+ if (writefds)
+ memcpy(writefds, &outwritefds, sizeof(fd_set));
+ return nummatches;
+}
+
diff --git a/src/backend/postmaster/pgstat.c b/src/backend/postmaster/pgstat.c
index a52828ab681..87c9d09fcd9 100644
--- a/src/backend/postmaster/pgstat.c
+++ b/src/backend/postmaster/pgstat.c
@@ -13,7 +13,7 @@
*
* Copyright (c) 2001-2003, PostgreSQL Global Development Group
*
- * $PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.65 2004/04/05 03:16:21 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.66 2004/04/12 16:19:18 momjian Exp $
* ----------
*/
#include "postgres.h"
@@ -83,6 +83,7 @@ NON_EXEC_STATIC int pgStatSock = -1;
static int pgStatPipe[2];
static struct sockaddr_storage pgStatAddr;
static int pgStatPmPipe[2] = {-1, -1};
+static int pgStatCollectorPmPipe[2] = {-1, -1};
static int pgStatPid;
static time_t last_pgstat_start_time;
@@ -410,7 +411,7 @@ pgstat_init(void)
/*
* Create the pipe that controls the statistics collector shutdown
*/
- if (pgpipe(pgStatPmPipe) < 0)
+ if (pgpipe(pgStatPmPipe) < 0 || pgpipe(pgStatCollectorPmPipe) < 0)
{
ereport(LOG,
(errcode_for_socket_access(),
@@ -451,9 +452,9 @@ static pid_t
pgstat_forkexec(STATS_PROCESS_TYPE procType)
{
pid_t pid;
- char *av[13];
+ char *av[15];
int ac = 0, bufc = 0, i;
- char pgstatBuf[10][MAXPGPATH];
+ char pgstatBuf[12][MAXPGPATH];
av[ac++] = "postgres";
switch (procType)
@@ -475,6 +476,8 @@ pgstat_forkexec(STATS_PROCESS_TYPE procType)
snprintf(pgstatBuf[bufc++],MAXPGPATH,"%d",pgStatSock);
snprintf(pgstatBuf[bufc++],MAXPGPATH,"%d",pgStatPmPipe[0]);
snprintf(pgstatBuf[bufc++],MAXPGPATH,"%d",pgStatPmPipe[1]);
+ snprintf(pgstatBuf[bufc++],MAXPGPATH,"%d",pgStatCollectorPmPipe[0]);
+ snprintf(pgstatBuf[bufc++],MAXPGPATH,"%d",pgStatCollectorPmPipe[1]);
snprintf(pgstatBuf[bufc++],MAXPGPATH,"%d",pgStatPipe[0]);
snprintf(pgstatBuf[bufc++],MAXPGPATH,"%d",pgStatPipe[1]);
@@ -518,11 +521,13 @@ pgstat_forkexec(STATS_PROCESS_TYPE procType)
static void
pgstat_parseArgs(PGSTAT_FORK_ARGS)
{
- Assert(argc == 10);
+ Assert(argc == 12);
argc = 0;
pgStatSock = atoi(argv[argc++]);
pgStatPmPipe[0] = atoi(argv[argc++]);
pgStatPmPipe[1] = atoi(argv[argc++]);
+ pgStatCollectorPmPipe[0] = atoi(argv[argc++]);
+ pgStatCollectorPmPipe[1] = atoi(argv[argc++]);
pgStatPipe[0] = atoi(argv[argc++]);
pgStatPipe[1] = atoi(argv[argc++]);
MaxBackends = atoi(argv[argc++]);
@@ -676,6 +681,12 @@ pgstat_close_sockets(void)
if (pgStatPmPipe[1] >= 0)
closesocket(pgStatPmPipe[1]);
pgStatPmPipe[1] = -1;
+ if (pgStatCollectorPmPipe[0] >= 0)
+ closesocket(pgStatCollectorPmPipe[0]);
+ pgStatCollectorPmPipe[0] = -1;
+ if (pgStatCollectorPmPipe[1] >= 0)
+ closesocket(pgStatCollectorPmPipe[1]);
+ pgStatCollectorPmPipe[1] = -1;
}
@@ -1491,6 +1502,8 @@ pgstat_main(PGSTAT_FORK_ARGS)
*/
closesocket(pgStatPmPipe[1]);
pgStatPmPipe[1] = -1;
+ closesocket(pgStatCollectorPmPipe[1]);
+ pgStatCollectorPmPipe[1] = -1;
/*
* Start a buffering process to read from the socket, so we have a
@@ -1547,7 +1560,6 @@ pgstat_mainChild(PGSTAT_FORK_ARGS)
fd_set rfds;
int readPipe;
int pmPipe;
- int maxfd;
int nready;
int len = 0;
struct timeval timeout;
@@ -1564,7 +1576,7 @@ pgstat_mainChild(PGSTAT_FORK_ARGS)
closesocket(pgStatPipe[1]);
closesocket(pgStatSock);
- pmPipe = pgStatPmPipe[0];
+ pmPipe = pgStatCollectorPmPipe[0];
/*
* In the child we can have default SIGCHLD handling (in case we want
@@ -1666,14 +1678,11 @@ pgstat_mainChild(PGSTAT_FORK_ARGS)
*/
FD_ZERO(&rfds);
FD_SET(readPipe, &rfds);
- FD_SET(pmPipe, &rfds);
-
- maxfd = Max(readPipe, pmPipe);
/*
* Now wait for something to do.
*/
- nready = select(maxfd + 1, &rfds, NULL, NULL,
+ nready = select(readPipe+1, &rfds, NULL, NULL,
(need_statwrite) ? &timeout : NULL);
if (nready < 0)
{
@@ -1845,7 +1854,12 @@ pgstat_mainChild(PGSTAT_FORK_ARGS)
* is still open. If it is read-ready (ie, EOF), the postmaster must
* have quit.
*/
- if (FD_ISSET(pmPipe, &rfds))
+ FD_ZERO(&rfds);
+ FD_SET(pmPipe, &rfds);
+ timeout.tv_sec = 0;
+ timeout.tv_usec = 0;
+ nready = select(pmPipe+1,&rfds,NULL,NULL,&timeout);
+ if (nready > 0 && FD_ISSET(pmPipe, &rfds))
pgstat_write_statsfile();
}
diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index 09517edeb7d..6876044a6a9 100644
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -37,7 +37,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.379 2004/03/24 15:20:54 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.380 2004/04/12 16:19:18 momjian Exp $
*
* NOTES
*
@@ -2017,35 +2017,6 @@ reaper_done:
}
-#ifdef WIN32
-/*
- * On WIN32, we cannot use socket functions inside
- * an APC (signal handler). If we do, select() will return
- * with incorrect return values, causing the postmaster to
- * enter a blocking accept(). We work around this by
- * running it on a separate thread. We still block the main
- * thread until it is done, so we don't scribble over any
- * data from the wrong thread (pgstat functions aqre not
- * thread safe).
- */
-static DWORD WINAPI win32_pgstat_beterm_thread(LPVOID param)
-{
- pgstat_beterm((int)param);
- return 0;
-}
-
-static void win32_pgstat_beterm(int pid) {
- HANDLE beterm_thread = CreateThread(NULL, 64*1024, win32_pgstat_beterm_thread, (LPVOID)pid, 0, NULL);
- if (!beterm_thread)
- ereport(FATAL,
- (errmsg_internal("failed to create beterm sender thread: %i", (int)GetLastError())));
- if (WaitForSingleObject(beterm_thread,INFINITE) != WAIT_OBJECT_0)
- ereport(FATAL,
- (errmsg_internal("failed to wait for beterm sender thread: %i", (int)GetLastError())));
- CloseHandle(beterm_thread);
-}
-#endif
-
/*
* CleanupProc -- cleanup after terminated backend.
*
@@ -2099,11 +2070,7 @@ CleanupProc(int pid,
else if (pid == BgWriterPID)
BgWriterPID = 0;
else
-#ifndef WIN32
pgstat_beterm(pid);
-#else
- win32_pgstat_beterm(pid);
-#endif
return;
}
diff --git a/src/include/libpq/pqsignal.h b/src/include/libpq/pqsignal.h
index 5ebf52bb0de..8ca51353032 100644
--- a/src/include/libpq/pqsignal.h
+++ b/src/include/libpq/pqsignal.h
@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/include/libpq/pqsignal.h,v 1.25 2004/02/08 22:28:57 neilc Exp $
+ * $PostgreSQL: pgsql/src/include/libpq/pqsignal.h,v 1.26 2004/04/12 16:19:18 momjian Exp $
*
* NOTES
* This shouldn't be in libpq, but the monitor and some other
@@ -18,9 +18,7 @@
#ifndef PQSIGNAL_H
#define PQSIGNAL_H
-#ifndef WIN32
#include <signal.h>
-#endif
#ifdef HAVE_SIGPROCMASK
extern sigset_t UnBlockSig,
@@ -46,23 +44,5 @@ typedef void (*pqsigfunc) (int);
extern void pqinitmask(void);
extern pqsigfunc pqsignal(int signo, pqsigfunc func);
-extern void pg_queue_signal(int signum);
-
-#ifdef WIN32
-#define sigmask(sig) ( 1 << (sig-1) )
-
-void pgwin32_signal_initialize(void);
-extern HANDLE pgwin32_main_thread_handle;
-#define PG_POLL_SIGNALS() WaitForSingleObjectEx(pgwin32_main_thread_handle,0,TRUE);
-
-/* Signal function return values */
-#undef SIG_DFL
-#undef SIG_ERR
-#undef SIG_IGN
-#define SIG_DFL ((pqsigfunc)0)
-#define SIG_ERR ((pqsigfunc)-1)
-#define SIG_IGN ((pqsigfunc)1)
-
-#endif
#endif /* PQSIGNAL_H */
diff --git a/src/include/miscadmin.h b/src/include/miscadmin.h
index 4aba00bb713..76f2d086aea 100644
--- a/src/include/miscadmin.h
+++ b/src/include/miscadmin.h
@@ -13,7 +13,7 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/include/miscadmin.h,v 1.155 2004/03/24 22:40:29 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/miscadmin.h,v 1.156 2004/04/12 16:19:18 momjian Exp $
*
* NOTES
* some of the information in this file should be moved to
@@ -83,7 +83,8 @@ do { \
#else
#define CHECK_FOR_INTERRUPTS() \
do { \
- WaitForSingleObjectEx(GetCurrentThread(),0,TRUE); \
+ if (WaitForSingleObject(pgwin32_signal_event,0) == WAIT_OBJECT_0) \
+ pgwin32_dispatch_queued_signals(); \
if (InterruptPending) \
ProcessInterrupts(); \
} while(0)
diff --git a/src/include/port/win32.h b/src/include/port/win32.h
index f2519681c29..d1e55725b9f 100644
--- a/src/include/port/win32.h
+++ b/src/include/port/win32.h
@@ -1,4 +1,4 @@
-/* $PostgreSQL: pgsql/src/include/port/win32.h,v 1.20 2004/03/02 18:35:59 momjian Exp $ */
+/* $PostgreSQL: pgsql/src/include/port/win32.h,v 1.21 2004/04/12 16:19:18 momjian Exp $ */
/* undefine and redefine after #include */
#undef mkdir
@@ -98,15 +98,49 @@ int semctl(int semId, int semNum, int flag, union semun);
int semget(int semKey, int semNum, int flags);
int semop(int semId, struct sembuf * sops, int flag);
-#define sleep(sec) (Sleep(sec * 1000), /* no return value */ 0)
+/* In backend/port/win32/signal.c */
+void pgwin32_signal_initialize(void);
+extern DLLIMPORT HANDLE pgwin32_signal_event;
+void pgwin32_dispatch_queued_signals(void);
+void pg_queue_signal(int signum);
+
+#define sigmask(sig) ( 1 << (sig-1) )
+
+/* Signal function return values */
+#undef SIG_DFL
+#undef SIG_ERR
+#undef SIG_IGN
+#define SIG_DFL ((pqsigfunc)0)
+#define SIG_ERR ((pqsigfunc)-1)
+#define SIG_IGN ((pqsigfunc)1)
#ifndef FRONTEND
-/* In libpq/pqsignal.c */
#define kill(pid,sig) pqkill(pid,sig)
-int pqkill(int pid, int sig);
+extern int pqkill(int pid, int sig);
+
+#define pg_usleep(t) pgwin32_backend_usleep(t)
+void pgwin32_backend_usleep(long microsec);
#endif
+/* In backend/port/win32/socket.c */
+#ifndef FRONTEND
+#define socket(af, type, protocol) pgwin32_socket(af, type, protocol)
+#define accept(s, addr, addrlen) pgwin32_accept(s, addr, addrlen)
+#define connect(s, name, namelen) pgwin32_connect(s, name, namelen)
+#define select(n, r, w, e, timeout) pgwin32_select(n, r, w, e, timeout)
+#define recv(s, buf, len, flags) pgwin32_recv(s, buf, len, flags)
+#define send(s, buf, len, flags) pgwin32_send(s, buf, len, flags)
+
+SOCKET pgwin32_socket(int af, int type, int protocol);
+SOCKET pgwin32_accept(SOCKET s, struct sockaddr* addr, int* addrlen);
+int pgwin32_connect(SOCKET s, const struct sockaddr* name, int namelen);
+int pgwin32_select(int nfds, fd_set* readfs, fd_set* writefds, fd_set* exceptfds, const struct timeval* timeout);
+int pgwin32_recv(SOCKET s, char* buf, int len, int flags);
+int pgwin32_send(SOCKET s, char* buf, int len, int flags);
+#endif
+
+
/* Some extra signals */
#define SIGHUP 1
#define SIGQUIT 3
@@ -179,3 +213,8 @@ int setitimer(int which, const struct itimerval *value, struct itimerval *ovalue
#define EWOULDBLOCK WSAEWOULDBLOCK
#define ECONNRESET WSAECONNRESET
#define EINPROGRESS WSAEINPROGRESS
+#define ENOBUFS WSAENOBUFS
+#define EPROTONOSUPPORT WSAEPROTONOSUPPORT
+#define ECONNREFUSED WSAECONNREFUSED
+#define EBADFD WSAENOTSOCK
+#define EOPNOTSUPP WSAEOPNOTSUPP
diff --git a/src/port/pgsleep.c b/src/port/pgsleep.c
index 41f989dbbea..b4a65965400 100644
--- a/src/port/pgsleep.c
+++ b/src/port/pgsleep.c
@@ -6,7 +6,7 @@
*
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
*
- * $PostgreSQL: pgsql/src/port/pgsleep.c,v 1.2 2004/02/10 04:23:03 tgl Exp $
+ * $PostgreSQL: pgsql/src/port/pgsleep.c,v 1.3 2004/04/12 16:19:18 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -15,7 +15,6 @@
#include <unistd.h>
#include <sys/time.h>
-
/*
* pg_usleep --- delay the specified number of microseconds.
*
@@ -25,6 +24,9 @@
*
* On machines where "long" is 32 bits, the maximum delay is ~2000 seconds.
*/
+#ifdef pg_usleep
+#undef pg_usleep
+#endif
void
pg_usleep(long microsec)
{
@@ -37,7 +39,7 @@ pg_usleep(long microsec)
delay.tv_usec = microsec % 1000000L;
(void) select(0, NULL, NULL, NULL, &delay);
#else
- SleepEx((microsec < 500 ? 1 : (microsec + 500) / 1000), TRUE);
+ SleepEx((microsec < 500 ? 1 : (microsec + 500) / 1000), FALSE);
#endif
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-30 07:25:29 +0000