X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Futil%2Fos_file.h;h=cf0dc2075952c23a942b33b8b00895947755c060;hb=a029eafba360d660dc43f8b44f654ce6af31a2c2;hp=d691302d12dd095e0dcf8aac2cf1385f1648511e;hpb=1b259f1ae798099de280dd0ee10018d1fd54be04;p=mesa.git

diff --git a/src/util/os_file.h b/src/util/os_file.h
index d691302d12d..cf0dc207595 100644
--- a/src/util/os_file.h
+++ b/src/util/os_file.h
@@ -8,6 +8,7 @@
 #ifndef _OS_FILE_H_
 #define _OS_FILE_H_
 
+#include <stdbool.h>
 #include <stdio.h>
 
 #ifdef  __cplusplus
@@ -23,12 +24,31 @@ extern "C" {
 FILE *
 os_file_create_unique(const char *filename, int filemode);
 
+/*
+ * Duplicate a file descriptor, making sure not to keep it open after an exec*()
+ */
+int
+os_dupfd_cloexec(int fd);
+
 /*
  * Read a file.
  * Returns a char* that the caller must free(), or NULL and sets errno.
+ * If size is not null and no error occured it's set to the size of the
+ * file.
  */
 char *
-os_read_file(const char *filename);
+os_read_file(const char *filename, size_t *size);
+
+/*
+ * Try to determine if two file descriptors reference the same file description
+ *
+ * Return values:
+ * - 0:   They reference the same file description
+ * - > 0: They do not reference the same file description
+ * - < 0: Unable to determine whether they reference the same file description
+ */
+int
+os_same_file_description(int fd1, int fd2);
 
 #ifdef __cplusplus
 }