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-rw-r--r--src/core/ngx_hunk.h32
1 files changed, 19 insertions, 13 deletions
diff --git a/src/core/ngx_hunk.h b/src/core/ngx_hunk.h
index e4238b4f5..8fbcf806c 100644
--- a/src/core/ngx_hunk.h
+++ b/src/core/ngx_hunk.h
@@ -7,33 +7,39 @@
#include <ngx_alloc.h>
-/* type */
+/* hunk type */
+
+/* temp means that hunk's content can be changed */
+/* other type means that hunk's content can not be changed */
#define NGX_HUNK_TEMP 0x0001
#define NGX_HUNK_MEMORY 0x0002
#define NGX_HUNK_MMAP 0x0004
#define NGX_HUNK_FILE 0x0008
-#define NGX_HUNK_FLUSH 0x0010
-/* in thread state flush means to write the hunk completely before return
- in event-driven state flush means to start to write the hunk */
-#define NGX_HUNK_LAST 0x0020
-#define NGX_HUNK_IN_MEMORY (NGX_HUNK_TEMP | NGX_HUNK_MEMORY | NGX_HUNK_MMAP )
-#define NGX_HUNK_TYPE 0x0ffff
+/* hunk flags */
-/* flags */
-#define NGX_HUNK_SHUTDOWN 0x10000
+/* in thread state flush means to write the hunk completely before return */
+/* in event state flush means to start to write the hunk */
+#define NGX_HUNK_FLUSH 0x0100
+/* last hunk */
+#define NGX_HUNK_LAST 0x0200
/* can be used with NGX_HUNK_LAST only */
+#define NGX_HUNK_SHUTDOWN 0x0400
+
+
+#define NGX_HUNK_IN_MEMORY (NGX_HUNK_TEMP|NGX_HUNK_MEMORY|NGX_HUNK_MMAP)
+
typedef struct ngx_hunk_s ngx_hunk_t;
struct ngx_hunk_s {
union {
- char *p; /* start of current data */
- off_t f;
+ char *mem; /* start of current data */
+ off_t file;
} pos;
union {
- char *p; /* end of current data */
- off_t f;
+ char *mem; /* end of current data */
+ off_t file;
} last;
int type;
char *start; /* start of hunk */