nginx: src/os/unix/ngx_files.c comparison

ngx_create_file_mapping()

comparison

equal deleted inserted replaced

-:c12b0dd5bd1c
+:515d50917016
 return NGX_ERROR;
 }
 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)
 {
 dir->dir = opendir((const char *) name->data);
 if (dir->dir == NULL) {

Mercurial > hg > nginx