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ngx_create_file_mapping()

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This commit is contained in:
Igor Sysoev 2010-06-29 15:18:50 +00:00
parent 325bd4ea98
commit 865db9bbf3
4 changed files with 172 additions and 0 deletions
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52
src/os/unix/ngx_files.c
View File

@ -258,6 +258,58 @@ ngx_set_file_time(u_char *name, ngx_fd_t fd, time_t s)
}
ngx_int_t
ngx_create_file_mapping(ngx_file_mapping_t *fm)
{
fm->fd = ngx_open_file(fm->name, NGX_FILE_RDWR, NGX_FILE_TRUNCATE,
NGX_FILE_DEFAULT_ACCESS);
if (fm->fd == NGX_INVALID_FILE) {
ngx_log_error(NGX_LOG_CRIT, fm->log, ngx_errno,
ngx_open_file_n " \"%s\" failed", fm->name);
return NGX_ERROR;
}
if (ftruncate(fm->fd, fm->size) == -1) {
ngx_log_error(NGX_LOG_CRIT, fm->log, ngx_errno,
"ftruncate() \"%s\" failed", fm->name);
goto failed;
}
fm->addr = mmap(NULL, fm->size, PROT_READ|PROT_WRITE, MAP_SHARED,
fm->fd, 0);
if (fm->addr != MAP_FAILED) {
return NGX_OK;
}
ngx_log_error(NGX_LOG_CRIT, fm->log, ngx_errno,
"mmap(%uz) \"%s\" failed", fm->size, fm->name);
failed:
if (ngx_close_file(fm->fd) == NGX_FILE_ERROR) {
ngx_log_error(NGX_LOG_ALERT, fm->log, ngx_errno,
ngx_close_file_n " \"%s\" failed", fm->name);
}
return NGX_ERROR;
}
void
ngx_close_file_mapping(ngx_file_mapping_t *fm)
{
if (munmap(fm->addr, fm->size) == -1) {
ngx_log_error(NGX_LOG_CRIT, fm->log, ngx_errno,
"munmap(%uz) \"%s\" failed", fm->size, fm->name);
}
if (ngx_close_file(fm->fd) == NGX_FILE_ERROR) {
ngx_log_error(NGX_LOG_ALERT, fm->log, ngx_errno,
ngx_close_file_n " \"%s\" failed", fm->name);
}
}
ngx_int_t
ngx_open_dir(ngx_str_t *name, ngx_dir_t *dir)
{

13
src/os/unix/ngx_files.h
View File

@ -17,6 +17,15 @@ typedef struct stat ngx_file_info_t;
typedef ino_t ngx_file_uniq_t;
typedef struct {
u_char *name;
size_t size;
void *addr;
ngx_fd_t fd;
ngx_log_t *log;
} ngx_file_mapping_t;
typedef struct {
DIR *dir;
struct dirent *de;
@ -152,6 +161,10 @@ ngx_int_t ngx_set_file_time(u_char *name, ngx_fd_t fd, time_t s);
#define ngx_file_uniq(sb) (sb)->st_ino
ngx_int_t ngx_create_file_mapping(ngx_file_mapping_t *fm);
void ngx_close_file_mapping(ngx_file_mapping_t *fm);
#if (NGX_HAVE_CASELESS_FILESYSTEM)
#define ngx_filename_cmp(s1, s2, n) strncasecmp((char *) s1, (char *) s2, n)

92
src/os/win32/ngx_files.c
View File

@ -332,6 +332,98 @@ ngx_set_file_time(u_char *name, ngx_fd_t fd, time_t s)
}
ngx_int_t
ngx_create_file_mapping(ngx_file_mapping_t *fm)
{
LARGE_INTEGER size;
fm->fd = ngx_open_file(fm->name, NGX_FILE_RDWR, NGX_FILE_TRUNCATE,
NGX_FILE_DEFAULT_ACCESS);
if (fm->fd == NGX_INVALID_FILE) {
ngx_log_error(NGX_LOG_CRIT, fm->log, ngx_errno,
ngx_open_file_n " \"%s\" failed", fm->name);
return NGX_ERROR;
}
fm->handle = NULL;
size.QuadPart = fm->size;
if (SetFilePointerEx(fm->fd, size, NULL, FILE_BEGIN) == 0) {
ngx_log_error(NGX_LOG_CRIT, fm->log, ngx_errno,
"SetFilePointerEx(\"%s\", %uz) failed",
fm->name, fm->size);
goto failed;
}
if (SetEndOfFile(fm->fd) == 0) {
ngx_log_error(NGX_LOG_CRIT, fm->log, ngx_errno,
"SetEndOfFile() \"%s\" failed", fm->name);
goto failed;
}
fm->handle = CreateFileMapping(fm->fd, NULL, PAGE_READWRITE,
(u_long) ((off_t) fm->size >> 32),
(u_long) ((off_t) fm->size & 0xffffffff),
NULL);
if (fm->handle == NULL) {
ngx_log_error(NGX_LOG_CRIT, fm->log, ngx_errno,
"CreateFileMapping(%s, %uz) failed",
fm->name, fm->size);
goto failed;
}
fm->addr = MapViewOfFile(fm->handle, FILE_MAP_WRITE, 0, 0, 0);
if (fm->addr != NULL) {
return NGX_OK;
}
ngx_log_error(NGX_LOG_CRIT, fm->log, ngx_errno,
"MapViewOfFile(%uz) of file mapping \"%s\" failed",
fm->size, fm->name);
failed:
if (fm->handle) {
if (CloseHandle(fm->handle) == 0) {
ngx_log_error(NGX_LOG_ALERT, fm->log, ngx_errno,
"CloseHandle() of file mapping \"%s\" failed",
fm->name);
}
}
if (ngx_close_file(fm->fd) == NGX_FILE_ERROR) {
ngx_log_error(NGX_LOG_ALERT, fm->log, ngx_errno,
ngx_close_file_n " \"%s\" failed", fm->name);
}
return NGX_ERROR;
}
void
ngx_close_file_mapping(ngx_file_mapping_t *fm)
{
if (UnmapViewOfFile(fm->addr) == 0) {
ngx_log_error(NGX_LOG_ALERT, fm->log, ngx_errno,
"UnmapViewOfFile(%p) of file mapping \"%s\" failed",
fm->addr, &fm->name);
}
if (CloseHandle(fm->handle) == 0) {
ngx_log_error(NGX_LOG_ALERT, fm->log, ngx_errno,
"CloseHandle() of file mapping \"%s\" failed",
&fm->name);
}
if (ngx_close_file(fm->fd) == NGX_FILE_ERROR) {
ngx_log_error(NGX_LOG_ALERT, fm->log, ngx_errno,
ngx_close_file_n " \"%s\" failed", fm->name);
}
}
char *
ngx_realpath(u_char *path, u_char *resolved)
{

15
src/os/win32/ngx_files.h
View File

@ -16,6 +16,17 @@ typedef HANDLE ngx_fd_t;
typedef BY_HANDLE_FILE_INFORMATION ngx_file_info_t;
typedef uint64_t ngx_file_uniq_t;
typedef struct {
u_char *name;
size_t size;
void *addr;
ngx_fd_t fd;
HANDLE handle;
ngx_log_t *log;
} ngx_file_mapping_t;
typedef struct {
HANDLE dir;
WIN32_FIND_DATA finddata;
@ -154,6 +165,10 @@ ngx_int_t ngx_file_info(u_char *filename, ngx_file_info_t *fi);
| (fi)->ftLastWriteTime.dwLowDateTime) \
- 116444736000000000) / 10000000)
ngx_int_t ngx_create_file_mapping(ngx_file_mapping_t *fm);
void ngx_close_file_mapping(ngx_file_mapping_t *fm);
#define NGX_HAVE_CASELESS_FILESYSTEM 1
#define ngx_filename_cmp(s1, s2, n) _strnicmp((char *) s1, (char *) s2, n)