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diff src/os/win32/ngx_files.c @ 7670:ccb5ff87ab3e

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Cache: introduced min_free cache clearing. Clearing cache based on free space left on a file system is expected to allow better disk utilization in some cases, notably when disk space might be also used for something other than nginx cache (including nginx own temporary files) and while loading cache (when cache size might be inaccurate for a while, effectively disabling max_size cache clearing). Based on a patch by Adam Bambuch.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 22 Jun 2020 18:03:00 +0300
parents 061ec464813f
children b0a06c50c1b4
line wrap: on
line diff
--- 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)
 {