diff options
| -rw-r--r-- | src/http/ngx_http_cache.h | 1 | ||||
| -rw-r--r-- | src/http/ngx_http_file_cache.c | 43 | ||||
| -rw-r--r-- | src/os/unix/ngx_files.c | 33 | ||||
| -rw-r--r-- | src/os/unix/ngx_files.h | 1 | ||||
| -rw-r--r-- | src/os/win32/ngx_files.c | 13 | ||||
| -rw-r--r-- | src/os/win32/ngx_files.h | 1 |
6 files changed, 89 insertions, 3 deletions
diff --git a/src/http/ngx_http_cache.h b/src/http/ngx_http_cache.h index f9e966409..cd0b4bbf8 100644 --- a/src/http/ngx_http_cache.h +++ b/src/http/ngx_http_cache.h @@ -160,6 +160,7 @@ struct ngx_http_file_cache_s { ngx_path_t *path; + off_t min_free; off_t max_size; size_t bsize; diff --git a/src/http/ngx_http_file_cache.c b/src/http/ngx_http_file_cache.c index ecdf11e28..e985f27b1 100644 --- a/src/http/ngx_http_file_cache.c +++ b/src/http/ngx_http_file_cache.c @@ -1959,7 +1959,7 @@ ngx_http_file_cache_manager(void *data) { ngx_http_file_cache_t *cache = data; - off_t size; + off_t size, free; time_t wait; ngx_msec_t elapsed, next; ngx_uint_t count, watermark; @@ -1988,7 +1988,19 @@ ngx_http_file_cache_manager(void *data) size, count, (ngx_int_t) watermark); if (size < cache->max_size && count < watermark) { - break; + + if (!cache->min_free) { + break; + } + + free = ngx_fs_available(cache->path->name.data); + + ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0, + "http file cache free: %O", free); + + if (free > cache->min_free) { + break; + } } wait = ngx_http_file_cache_forced_expire(cache); @@ -2304,7 +2316,7 @@ ngx_http_file_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *confp = conf; - off_t max_size; + off_t max_size, min_free; u_char *last, *p; time_t inactive; ssize_t size; @@ -2341,6 +2353,7 @@ ngx_http_file_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) name.len = 0; size = 0; max_size = NGX_MAX_OFF_T_VALUE; + min_free = 0; value = cf->args->elts; @@ -2476,6 +2489,29 @@ ngx_http_file_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) continue; } + if (ngx_strncmp(value[i].data, "min_free=", 9) == 0) { + +#if (NGX_WIN32 || NGX_HAVE_STATFS || NGX_HAVE_STATVFS) + + s.len = value[i].len - 9; + s.data = value[i].data + 9; + + min_free = ngx_parse_offset(&s); + if (min_free < 0) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "invalid min_free value \"%V\"", &value[i]); + return NGX_CONF_ERROR; + } + +#else + ngx_conf_log_error(NGX_LOG_WARN, cf, 0, + "min_free is not supported " + "on this platform, ignored"); +#endif + + continue; + } + if (ngx_strncmp(value[i].data, "loader_files=", 13) == 0) { loader_files = ngx_atoi(value[i].data + 13, value[i].len - 13); @@ -2607,6 +2643,7 @@ ngx_http_file_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) cache->inactive = inactive; cache->max_size = max_size; + cache->min_free = min_free; caches = (ngx_array_t *) (confp + cmd->offset); diff --git a/src/os/unix/ngx_files.c b/src/os/unix/ngx_files.c index 7e8e58fe7..1c82a8ead 100644 --- a/src/os/unix/ngx_files.c +++ b/src/os/unix/ngx_files.c @@ -884,6 +884,19 @@ ngx_fs_bsize(u_char *name) return (size_t) fs.f_bsize; } + +off_t +ngx_fs_available(u_char *name) +{ + struct statfs fs; + + if (statfs((char *) name, &fs) == -1) { + return NGX_MAX_OFF_T_VALUE; + } + + return (off_t) fs.f_bavail * fs.f_bsize; +} + #elif (NGX_HAVE_STATVFS) size_t @@ -908,6 +921,19 @@ ngx_fs_bsize(u_char *name) return (size_t) fs.f_frsize; } + +off_t +ngx_fs_available(u_char *name) +{ + struct statvfs fs; + + if (statvfs((char *) name, &fs) == -1) { + return NGX_MAX_OFF_T_VALUE; + } + + return (off_t) fs.f_bavail * fs.f_frsize; +} + #else size_t @@ -916,4 +942,11 @@ ngx_fs_bsize(u_char *name) return 512; } + +off_t +ngx_fs_available(u_char *name) +{ + return NGX_MAX_OFF_T_VALUE; +} + #endif diff --git a/src/os/unix/ngx_files.h b/src/os/unix/ngx_files.h index 3e36984b9..d084713b6 100644 --- a/src/os/unix/ngx_files.h +++ b/src/os/unix/ngx_files.h @@ -349,6 +349,7 @@ ngx_int_t ngx_directio_off(ngx_fd_t fd); #endif size_t ngx_fs_bsize(u_char *name); +off_t ngx_fs_available(u_char *name); #if (NGX_HAVE_OPENAT) diff --git a/src/os/win32/ngx_files.c b/src/os/win32/ngx_files.c index 0b131b58a..3017b45fe 100644 --- a/src/os/win32/ngx_files.c +++ b/src/os/win32/ngx_files.c @@ -658,6 +658,19 @@ ngx_fs_bsize(u_char *name) } +off_t +ngx_fs_available(u_char *name) +{ + ULARGE_INTEGER navail; + + if (GetDiskFreeSpaceEx((const char *) name, &navail, NULL, NULL) == 0) { + return NGX_MAX_OFF_T_VALUE; + } + + return (off_t) navail.QuadPart; +} + + static ngx_int_t ngx_win32_check_filename(u_char *name, u_short *u, size_t len) { diff --git a/src/os/win32/ngx_files.h b/src/os/win32/ngx_files.h index 6eb720e78..a10839ba4 100644 --- a/src/os/win32/ngx_files.h +++ b/src/os/win32/ngx_files.h @@ -259,6 +259,7 @@ ngx_int_t ngx_directio_off(ngx_fd_t fd); #define ngx_directio_off_n "ngx_directio_off_n" size_t ngx_fs_bsize(u_char *name); +off_t ngx_fs_available(u_char *name); #define ngx_stdout GetStdHandle(STD_OUTPUT_HANDLE) |