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implement flock on Windows

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This commit is contained in:
Yasuhiro Matsumoto
2017-12-12 23:21:41 +09:00
parent df2c3771f8
commit f1ea7a31c0
1 changed files with 14 additions and 1 deletions
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mrbgems/mruby-io/src/file.c
+14 -1
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@@ -24,6 +24,7 @@
#include <stdlib.h>
#include <string.h>
#if defined(_WIN32) || defined(_WIN64)
#include <windows.h>
#define NULL_FILE "NUL"
#define UNLINK _unlink
#define GETCWD _getcwd
@@ -70,6 +71,18 @@
#define STAT(p, s) stat(p, s)
#ifdef _WIN32
static int
flock(int fd, int operation) {
OVERLAPPED ov;
HANDLE h = (HANDLE)_get_osfhandle(fd);
DWORD flags;
flags = ((operation & LOCK_NB) ? LOCKFILE_FAIL_IMMEDIATELY : 0)
| ((operation & LOCK_SH) ? LOCKFILE_EXCLUSIVE_LOCK : 0);
memset(&ov, 0, sizeof(ov));
return LockFileEx(h, flags, 0, 0xffffffff, 0xffffffff, &ov) ? 0 : -1;
}
#endif
mrb_value
mrb_file_s_umask(mrb_state *mrb, mrb_value klass)
@@ -283,7 +296,7 @@ mrb_file__gethome(mrb_state *mrb, mrb_value klass)
mrb_value
mrb_file_flock(mrb_state *mrb, mrb_value self)
{
#if defined(_WIN32) || defined(_WIN64) || defined(sun)
#if defined(sun)
mrb_raise(mrb, E_NOTIMP_ERROR, "flock is not supported on Illumos/Solaris/Windows");
#else
mrb_int operation;