Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(460)

Unified Diff: fusl/src/time/__map_file.c

Issue 1573973002: Add a "fork" of musl as //fusl. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 4 years, 11 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « fusl/src/time/__asctime.c ('k') | fusl/src/time/__month_to_secs.c » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: fusl/src/time/__map_file.c
diff --git a/fusl/src/time/__map_file.c b/fusl/src/time/__map_file.c
new file mode 100644
index 0000000000000000000000000000000000000000..b91eb8edb986438c75152d737e6f4734b8e04fb1
--- /dev/null
+++ b/fusl/src/time/__map_file.c
@@ -0,0 +1,20 @@
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include "syscall.h"
+
+void *__mmap(void *, size_t, int, int, int, off_t);
+
+const char unsigned *__map_file(const char *pathname, size_t *size)
+{
+ struct stat st;
+ const unsigned char *map = MAP_FAILED;
+ int fd = __sys_open(pathname, O_RDONLY|O_CLOEXEC|O_NONBLOCK);
+ if (fd < 0) return 0;
+ if (!__syscall(SYS_fstat, fd, &st)) {
+ map = __mmap(0, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
+ *size = st.st_size;
+ }
+ __syscall(SYS_close, fd);
+ return map == MAP_FAILED ? 0 : map;
+}
« no previous file with comments | « fusl/src/time/__asctime.c ('k') | fusl/src/time/__month_to_secs.c » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698