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-rw-r--r--src/os/unix/ngx_aio_read.c2
-rw-r--r--src/os/unix/ngx_files.c4
-rw-r--r--src/os/unix/ngx_files.h6
-rw-r--r--src/os/unix/ngx_os.h4
-rw-r--r--src/os/unix/ngx_process.h4
-rw-r--r--src/os/unix/ngx_process_cycle.c517
-rw-r--r--src/os/unix/ngx_process_cycle.h40
-rw-r--r--src/os/unix/ngx_user.h13
8 files changed, 576 insertions, 14 deletions
diff --git a/src/os/unix/ngx_aio_read.c b/src/os/unix/ngx_aio_read.c
index 1fc020d76..84301886a 100644
--- a/src/os/unix/ngx_aio_read.c
+++ b/src/os/unix/ngx_aio_read.c
@@ -25,7 +25,7 @@ ssize_t ngx_aio_read(ngx_connection_t *c, char *buf, size_t size)
rev = c->read;
if (!rev->ready) {
- ngx_log_error(NGX_LOG_ALERT, c->log, 0, "SECOND AIO POST");
+ ngx_log_error(NGX_LOG_ALERT, c->log, 0, "second aio post");
return NGX_AGAIN;
}
diff --git a/src/os/unix/ngx_files.c b/src/os/unix/ngx_files.c
index c2a2c8fca..c90a437ae 100644
--- a/src/os/unix/ngx_files.c
+++ b/src/os/unix/ngx_files.c
@@ -1,10 +1,6 @@
#include <ngx_config.h>
#include <ngx_core.h>
-#include <ngx_hunk.h>
-#include <ngx_array.h>
-#include <ngx_file.h>
-#include <ngx_files.h>
ssize_t ngx_read_file(ngx_file_t *file, char *buf, size_t size, off_t offset)
diff --git a/src/os/unix/ngx_files.h b/src/os/unix/ngx_files.h
index 09fc856a4..641ccfa0b 100644
--- a/src/os/unix/ngx_files.h
+++ b/src/os/unix/ngx_files.h
@@ -3,11 +3,7 @@
#include <ngx_config.h>
-
-#include <ngx_types.h>
-#include <ngx_alloc.h>
-#include <ngx_hunk.h>
-#include <ngx_file.h>
+#include <ngx_core.h>
#define NGX_INVALID_FILE -1
diff --git a/src/os/unix/ngx_os.h b/src/os/unix/ngx_os.h
index 90d253912..85e5dbeed 100644
--- a/src/os/unix/ngx_os.h
+++ b/src/os/unix/ngx_os.h
@@ -49,6 +49,8 @@ extern int ngx_max_sockets;
extern int ngx_inherited_nonblocking;
+#if 0
+
extern ngx_int_t ngx_process;
extern ngx_pid_t ngx_new_binary;
@@ -62,6 +64,8 @@ extern ngx_int_t ngx_reconfigure;
extern ngx_int_t ngx_reopen;
extern ngx_int_t ngx_change_binary;
+#endif
+
#ifdef __FreeBSD__
#include <ngx_freebsd.h>
diff --git a/src/os/unix/ngx_process.h b/src/os/unix/ngx_process.h
index bc68a054b..62c6b90c0 100644
--- a/src/os/unix/ngx_process.h
+++ b/src/os/unix/ngx_process.h
@@ -29,10 +29,6 @@ typedef struct {
} ngx_exec_ctx_t;
-#define NGX_PROCESS_SINGLE 0
-#define NGX_PROCESS_MASTER 1
-#define NGX_PROCESS_WORKER 2
-
#define NGX_MAX_PROCESSES 1024
#define NGX_PROCESS_NORESPAWN -1
diff --git a/src/os/unix/ngx_process_cycle.c b/src/os/unix/ngx_process_cycle.c
new file mode 100644
index 000000000..8e8bec66e
--- /dev/null
+++ b/src/os/unix/ngx_process_cycle.c
@@ -0,0 +1,517 @@
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_event.h>
+
+
+static void ngx_master_exit(ngx_cycle_t *cycle, ngx_master_ctx_t *ctx);
+static void ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data);
+#if (NGX_THREADS)
+static int ngx_worker_thread_cycle(void *data);
+#endif
+
+
+ngx_int_t ngx_process;
+ngx_pid_t ngx_pid;
+ngx_pid_t ngx_new_binary;
+ngx_int_t ngx_inherited;
+
+sig_atomic_t ngx_reap;
+sig_atomic_t ngx_timer;
+sig_atomic_t ngx_terminate;
+sig_atomic_t ngx_quit;
+sig_atomic_t ngx_noaccept;
+sig_atomic_t ngx_reconfigure;
+sig_atomic_t ngx_reopen;
+sig_atomic_t ngx_change_binary;
+
+
+/* TODO: broken NGX_PROCESS_SINGLE */
+
+void ngx_master_process_cycle(ngx_cycle_t *cycle, ngx_master_ctx_t *ctx)
+{
+ int signo;
+ sigset_t set;
+ struct timeval tv;
+ struct itimerval itv;
+ ngx_uint_t i, live;
+ ngx_msec_t delay;
+ ngx_core_conf_t *ccf;
+
+ sigemptyset(&set);
+ sigaddset(&set, SIGCHLD);
+ sigaddset(&set, SIGALRM);
+ sigaddset(&set, SIGINT);
+ sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
+ sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
+ sigaddset(&set, ngx_signal_value(NGX_NOACCEPT_SIGNAL));
+ sigaddset(&set, ngx_signal_value(NGX_TERMINATE_SIGNAL));
+ sigaddset(&set, ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
+ sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
+
+ if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) {
+ ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+ "sigprocmask() failed");
+ }
+
+ sigemptyset(&set);
+
+ ngx_setproctitle("master process");
+
+ ngx_new_binary = 0;
+ delay = 0;
+ signo = 0;
+ live = 0;
+
+ for ( ;; ) {
+ ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "new cycle");
+
+ if (ngx_process == NGX_PROCESS_MASTER) {
+ ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL,
+ "worker process", NGX_PROCESS_RESPAWN);
+
+ /*
+ * we have to limit the maximum life time of the worker processes
+ * by 1 month because our millisecond event timer is limited
+ * by 49 days on 32-bit platforms
+ */
+
+ itv.it_interval.tv_sec = 0;
+ itv.it_interval.tv_usec = 0;
+ itv.it_value.tv_sec = 30 * 24 * 60 * 60;
+ itv.it_value.tv_usec = 0;
+
+ if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
+ ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+ "setitimer() failed");
+ }
+
+ live = 1;
+
+ } else {
+ ngx_init_temp_number();
+
+ for (i = 0; ngx_modules[i]; i++) {
+ if (ngx_modules[i]->init_process) {
+ if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
+ /* fatal */
+ exit(1);
+ }
+ }
+ }
+ }
+
+ ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
+ ngx_core_module);
+
+ /* a cycle with the same configuration because a new one is invalid */
+
+ for ( ;; ) {
+
+ /* an event loop */
+
+ for ( ;; ) {
+
+ if (ngx_process == NGX_PROCESS_MASTER) {
+ if (delay) {
+ delay *= 2;
+
+ ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+ "temination cycle: %d", delay);
+
+ itv.it_interval.tv_sec = 0;
+ itv.it_interval.tv_usec = 0;
+ itv.it_value.tv_sec = delay / 1000;
+ itv.it_value.tv_usec = (delay % 1000 ) * 1000;
+
+ if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
+ ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+ "setitimer() failed");
+ }
+ }
+
+ ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+ "sigsuspend");
+
+ sigsuspend(&set);
+
+ ngx_gettimeofday(&tv);
+ ngx_time_update(tv.tv_sec);
+
+ ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+ "wake up");
+
+ } else { /* NGX_PROCESS_SINGLE */
+ ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+ "worker cycle");
+
+ ngx_process_events(cycle->log);
+ live = 0;
+ }
+
+ if (ngx_reap) {
+ ngx_reap = 0;
+ ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+ "reap childs");
+
+ live = 0;
+ for (i = 0; i < ngx_last_process; i++) {
+
+ ngx_log_debug5(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+ "child: " PID_T_FMT
+ " e:%d t:%d d:%d r:%d",
+ ngx_processes[i].pid,
+ ngx_processes[i].exiting,
+ ngx_processes[i].exited,
+ ngx_processes[i].detached,
+ ngx_processes[i].respawn);
+
+ if (ngx_processes[i].exited) {
+
+ if (ngx_processes[i].respawn
+ && !ngx_processes[i].exiting
+ && !ngx_terminate
+ && !ngx_quit)
+ {
+ if (ngx_spawn_process(cycle,
+ ngx_processes[i].proc,
+ ngx_processes[i].data,
+ ngx_processes[i].name, i)
+ == NGX_ERROR)
+ {
+ ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
+ "can not respawn %s",
+ ngx_processes[i].name);
+ continue;
+ }
+
+ live = 1;
+
+ continue;
+ }
+
+ if (ngx_processes[i].pid == ngx_new_binary) {
+ ngx_new_binary = 0;
+
+ /* TODO: if (ngx_noaccept) ngx_configure = 1 */
+ }
+
+ if (i != --ngx_last_process) {
+ ngx_processes[i--] =
+ ngx_processes[ngx_last_process];
+ }
+
+ } else if (ngx_processes[i].exiting
+ || !ngx_processes[i].detached)
+ {
+ live = 1;
+ }
+ }
+ }
+
+ if (!live && (ngx_terminate || ngx_quit)) {
+ ngx_master_exit(cycle, ctx);
+ }
+
+ if (ngx_terminate) {
+ if (delay == 0) {
+ delay = 50;
+ }
+
+ if (delay > 1000) {
+ signo = SIGKILL;
+ } else {
+ signo = ngx_signal_value(NGX_TERMINATE_SIGNAL);
+ }
+
+ } else if (ngx_quit) {
+ signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL);
+
+ } else if (ngx_timer) {
+ signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL);
+
+ } else {
+
+ if (ngx_noaccept) {
+ signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL);
+ }
+
+ if (ngx_change_binary) {
+ ngx_change_binary = 0;
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0,
+ "changing binary");
+ ngx_new_binary = ngx_exec_new_binary(cycle, ctx->argv);
+ }
+
+ if (ngx_reconfigure) {
+ signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL);
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0,
+ "reconfiguring");
+ }
+
+ if (ngx_reopen) {
+ if (ngx_process == NGX_PROCESS_MASTER) {
+ if (ccf->worker_reopen != 0) {
+ signo = ngx_signal_value(NGX_REOPEN_SIGNAL);
+ ngx_reopen = 0;
+
+ } else if (ngx_noaccept) {
+ ngx_reopen = 0;
+
+ } else {
+ signo = ngx_signal_value(NGX_SHUTDOWN_SIGNAL);
+ }
+
+ } else { /* NGX_PROCESS_SINGLE */
+ ngx_reopen = 0;
+ }
+
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0,
+ "reopening logs");
+ ngx_reopen_files(cycle,
+ ccf->worker_reopen != 0 ? ccf->user : (uid_t) -1);
+ }
+ }
+
+ if (signo) {
+ for (i = 0; i < ngx_last_process; i++) {
+
+ if (ngx_processes[i].detached) {
+ continue;
+ }
+
+ ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
+ "kill (" PID_T_FMT ", %d)" ,
+ ngx_processes[i].pid, signo);
+
+ if (kill(ngx_processes[i].pid, signo) == -1) {
+ ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+ "kill(%d, %d) failed",
+ ngx_processes[i].pid, signo);
+ continue;
+ }
+
+ if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
+ ngx_processes[i].exiting = 1;
+ }
+ }
+
+ signo = 0;
+ }
+
+ if (ngx_reopen || ngx_reconfigure || ngx_timer) {
+ break;
+ }
+ }
+
+ if (ngx_reopen) {
+ ngx_reopen = 0;
+
+ } else if (ngx_timer) {
+ ngx_timer = 0;
+
+ } else if (ngx_noaccept) {
+ ngx_noaccept = 0;
+ ngx_reconfigure = 0;
+
+ } else {
+ cycle = ngx_init_cycle(cycle);
+ if (cycle == NULL) {
+ cycle = (ngx_cycle_t *) ngx_cycle;
+ continue;
+ }
+
+ ngx_cycle = cycle;
+ ngx_reconfigure = 0;
+ }
+
+ break;
+ }
+ }
+}
+
+
+static void ngx_master_exit(ngx_cycle_t *cycle, ngx_master_ctx_t *ctx)
+{
+ char *name;
+
+ if (ngx_inherited && getppid() > 1) {
+ name = ctx->pid.name.data;
+
+ } else {
+ name = ctx->name;
+ }
+
+ if (ngx_delete_file(name) == NGX_FILE_ERROR) {
+ ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+ ngx_delete_file_n " \"%s\" failed", name);
+ }
+
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0, "exit");
+ exit(0);
+}
+
+
+static void ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data)
+{
+ sigset_t set;
+ ngx_int_t i;
+ ngx_listening_t *ls;
+ ngx_core_conf_t *ccf;
+#if (NGX_THREADS)
+ ngx_tid_t tid;
+#endif
+
+ ngx_process = NGX_PROCESS_WORKER;
+ ngx_last_process = 0;
+
+ ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
+
+ if (ccf->group != (gid_t) NGX_CONF_UNSET) {
+ if (setuid(ccf->group) == -1) {
+ ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
+ "setgid(%d) failed", ccf->group);
+ /* fatal */
+ exit(2);
+ }
+ }
+
+ if (ccf->user != (uid_t) NGX_CONF_UNSET && geteuid() == 0) {
+ if (setuid(ccf->user) == -1) {
+ ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
+ "setuid(%d) failed", ccf->user);
+ /* fatal */
+ exit(2);
+ }
+ }
+
+#if (HAVE_PR_SET_DUMPABLE)
+
+ /* allow coredump after setuid() in Linux 2.4.x */
+
+ if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
+ ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+ "prctl(PR_SET_DUMPABLE) failed");
+ }
+
+#endif
+
+ sigemptyset(&set);
+
+ if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {
+ ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+ "sigprocmask() failed");
+ }
+
+ ngx_init_temp_number();
+
+ /*
+ * disable deleting previous events for the listening sockets because
+ * in the worker processes there are no events at all at this point
+ */
+ ls = cycle->listening.elts;
+ for (i = 0; i < cycle->listening.nelts; i++) {
+ ls[i].remain = 0;
+ }
+
+ for (i = 0; ngx_modules[i]; i++) {
+ if (ngx_modules[i]->init_process) {
+ if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
+ /* fatal */
+ exit(1);
+ }
+ }
+ }
+
+ ngx_setproctitle("worker process");
+
+#if (NGX_THREADS)
+
+ if (ngx_init_threads(5, 128 * 1024 * 1024, cycle) == NGX_ERROR) {
+ /* fatal */
+ exit(1);
+ }
+
+ for (i = 0; i < 1; i++) {
+ if (ngx_create_thread(&tid, ngx_worker_thread_cycle,
+ cycle, cycle->log) != 0)
+ {
+ /* fatal */
+ exit(1);
+ }
+ }
+
+#endif
+
+ for ( ;; ) {
+ ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
+
+ ngx_process_events(cycle->log);
+
+ if (ngx_terminate) {
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0, "exiting");
+ exit(0);
+ }
+
+ if (ngx_quit) {
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0,
+ "gracefully shutting down");
+ ngx_setproctitle("worker process is shutting down");
+ break;
+ }
+
+ if (ngx_reopen) {
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0, "reopen logs");
+ ngx_reopen_files(cycle, -1);
+ ngx_reopen = 0;
+ }
+ }
+
+ ngx_close_listening_sockets(cycle);
+
+ for ( ;; ) {
+ if (ngx_event_timer_rbtree == &ngx_event_timer_sentinel) {
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0, "exiting");
+ exit(0);
+ }
+
+ ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
+
+ ngx_process_events(cycle->log);
+
+ if (ngx_reopen) {
+ ngx_log_error(NGX_LOG_INFO, cycle->log, 0, "reopen logs");
+ ngx_reopen_files(cycle, -1);
+ ngx_reopen = 0;
+ }
+ }
+}
+
+
+#if (NGX_THREADS)
+
+int ngx_worker_thread_cycle(void *data)
+{
+ ngx_cycle_t *cycle = data;
+
+ struct timeval tv;
+
+ /* STUB */
+
+ ngx_log_debug1(NGX_LOG_DEBUG_CORE, ngx_cycle->log, ngx_errno,
+ "thread %d started", ngx_thread_self());
+
+ ngx_setproctitle("worker thread");
+
+ sleep(5);
+
+ ngx_gettimeofday(&tv);
+ ngx_time_update(tv.tv_sec);
+
+ ngx_log_debug1(NGX_LOG_DEBUG_CORE, ngx_cycle->log, ngx_errno,
+ "thread %d done", ngx_thread_self());
+
+ return 1;
+}
+
+#endif
diff --git a/src/os/unix/ngx_process_cycle.h b/src/os/unix/ngx_process_cycle.h
new file mode 100644
index 000000000..c863b6213
--- /dev/null
+++ b/src/os/unix/ngx_process_cycle.h
@@ -0,0 +1,40 @@
+#ifndef _NGX_PROCESS_CYCLE_H_INCLUDED_
+#define _NGX_PROCESS_CYCLE_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+typedef struct {
+ ngx_file_t pid;
+ char *name;
+ int argc;
+ char *const *argv;
+} ngx_master_ctx_t;
+
+
+#define NGX_PROCESS_SINGLE 0
+#define NGX_PROCESS_MASTER 1
+#define NGX_PROCESS_WORKER 2
+
+
+void ngx_master_process_cycle(ngx_cycle_t *cycle, ngx_master_ctx_t *ctx);
+
+
+extern ngx_int_t ngx_process;
+extern ngx_pid_t ngx_pid;
+extern ngx_pid_t ngx_new_binary;
+extern ngx_int_t ngx_inherited;
+
+extern sig_atomic_t ngx_reap;
+extern sig_atomic_t ngx_timer;
+extern sig_atomic_t ngx_quit;
+extern sig_atomic_t ngx_terminate;
+extern sig_atomic_t ngx_noaccept;
+extern sig_atomic_t ngx_reconfigure;
+extern sig_atomic_t ngx_reopen;
+extern sig_atomic_t ngx_change_binary;
+
+
+#endif /* _NGX_PROCESS_CYCLE_H_INCLUDED_ */
diff --git a/src/os/unix/ngx_user.h b/src/os/unix/ngx_user.h
new file mode 100644
index 000000000..0aed208cc
--- /dev/null
+++ b/src/os/unix/ngx_user.h
@@ -0,0 +1,13 @@
+#ifndef _NGX_USER_H_INCLUDED_
+#define _NGX_USER_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+typedef uid_t ngx_uid_t;
+typedef gid_t ngx_gid_t;
+
+
+#endif /* _NGX_USER_H_INCLUDED_ */
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