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#include <ngx_config.h>
#include <ngx_core.h>
static int ngx_temp_number;
static int ngx_random;
int ngx_create_temp_file(ngx_file_t *file, ngx_path_t *path,
ngx_pool_t *pool, int persistent)
{
int num;
ngx_err_t err;
file->name.len = path->name.len + 1 + path->len + 10;
ngx_test_null(file->name.data, ngx_palloc(pool, file->name.len + 1),
NGX_ERROR);
#if 0
for (i = 0; i < file->name.len; i++) {
file->name.data[i] = 'X';
}
#endif
ngx_memcpy(file->name.data, path->name.data, path->name.len);
num = ngx_next_temp_number(0);
for ( ;; ) {
ngx_snprintf(file->name.data + path->name.len + 1 + path->len, 11,
"%010u", num);
ngx_create_hashed_filename(file, path);
#if 0
#if (WIN32)
file->fd = CreateFile(file->name.data,
GENERIC_READ|GENERIC_WRITE,
FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
NULL,
CREATE_NEW,
persistent ? 0:
FILE_ATTRIBUTE_TEMPORARY|FILE_FLAG_DELETE_ON_CLOSE,
NULL);
#else
file->fd = open(file->name.data, O_CREAT|O_EXCL|O_WRONLY, 0600);
#endif
#endif
file->fd = ngx_open_tempfile(file->name.data, persistent);
ngx_log_debug(file->log, "temp fd: %d" _ file->fd);
if (file->fd != NGX_INVALID_FILE) {
return NGX_OK;
}
err = ngx_errno;
if (err == NGX_EEXIST) {
num = ngx_next_temp_number(1);
continue;
}
if (err != NGX_ENOENT
#if (WIN32_NEED_TEST)
&& err != NGX_ENOTDIR
#endif
) {
ngx_log_error(NGX_LOG_CRIT, file->log, err,
ngx_open_tempfile_n " \"%s\" failed",
file->name.data);
return NGX_ERROR;
}
if (ngx_create_path(file, path) == NGX_ERROR) {
return NGX_ERROR;
}
}
}
void ngx_create_hashed_filename(ngx_file_t *file, ngx_path_t *path)
{
int i, name, pos, level;
name = file->name.len;
pos = path->name.len + 1;
file->name.data[path->name.len + path->len] = '/';
for (i = 0; i < 3; i++) {
level = path->level[i];
if (level == 0) {
break;
}
ngx_log_debug(file->log, "temp: %s" _ file->name.data);
name -= level;
file->name.data[pos - 1] = '/';
ngx_memcpy(&file->name.data[pos], &file->name.data[name], level);
pos += level + 1;
}
ngx_log_debug(file->log, "temp: %s" _ file->name.data);
}
int ngx_create_path(ngx_file_t *file, ngx_path_t *path)
{
int i, pos;
ngx_err_t err;
pos = path->name.len;
for (i = 0; i < 3; i++) {
if (path->level[i] == 0) {
break;
}
pos += path->level[i] + 1;
file->name.data[pos] = '\0';
ngx_log_debug(file->log, "temp: %s" _ file->name.data);
if (ngx_mkdir(file->name.data) == NGX_FILE_ERROR) {
err = ngx_errno;
if (err != NGX_EEXIST) {
ngx_log_error(NGX_LOG_CRIT, file->log, err,
ngx_mkdir_n " \"%s\" failed", file->name.data);
return NGX_ERROR;
}
}
file->name.data[pos] = '/';
}
return NGX_OK;
}
void ngx_init_temp_number()
{
ngx_random = 0;
ngx_temp_number = ngx_random;
while (ngx_random < 10000) {
ngx_random = 123456;
}
}
int ngx_next_temp_number(int collision)
{
if (collision) {
ngx_temp_number += ngx_random;
}
return ngx_temp_number++;
}
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