summaryrefslogtreecommitdiffstats
path: root/minzip/SysUtil.h
diff options
context:
space:
mode:
Diffstat (limited to 'minzip/SysUtil.h')
-rw-r--r--minzip/SysUtil.h55
1 files changed, 23 insertions, 32 deletions
diff --git a/minzip/SysUtil.h b/minzip/SysUtil.h
index ec3a4bcfb..7adff1e54 100644
--- a/minzip/SysUtil.h
+++ b/minzip/SysUtil.h
@@ -6,56 +6,47 @@
#ifndef _MINZIP_SYSUTIL
#define _MINZIP_SYSUTIL
-#include "inline_magic.h"
-
+#include <stdio.h>
#include <sys/types.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct MappedRange {
+ void* addr;
+ size_t length;
+} MappedRange;
+
/*
* Use this to keep track of mapped segments.
*/
typedef struct MemMapping {
- void* addr; /* start of data */
- size_t length; /* length of data */
+ unsigned char* addr; /* start of data */
+ size_t length; /* length of data */
- void* baseAddr; /* page-aligned base address */
- size_t baseLength; /* length of mapping */
+ int range_count;
+ MappedRange* ranges;
} MemMapping;
-/* copy a map */
-INLINE void sysCopyMap(MemMapping* dst, const MemMapping* src) {
- *dst = *src;
-}
-
-/*
- * Load a file into a new shared memory segment. All data from the current
- * offset to the end of the file is pulled in.
- *
- * The segment is read-write, allowing VM fixups. (It should be modified
- * to support .gz/.zip compressed data.)
- *
- * On success, "pMap" is filled in, and zero is returned.
- */
-int sysLoadFileInShmem(int fd, MemMapping* pMap);
-
/*
- * Map a file (from fd's current offset) into a shared,
- * read-only memory segment.
+ * Map a file into a private, read-only memory segment. If 'fn'
+ * begins with an '@' character, it is a map of blocks to be mapped,
+ * otherwise it is treated as an ordinary file.
*
* On success, "pMap" is filled in, and zero is returned.
*/
-int sysMapFileInShmem(int fd, MemMapping* pMap);
-
-/*
- * Like sysMapFileInShmem, but on only part of a file.
- */
-int sysMapFileSegmentInShmem(int fd, off_t start, long length,
- MemMapping* pMap);
+int sysMapFile(const char* fn, MemMapping* pMap);
/*
* Release the pages associated with a shared memory segment.
*
* This does not free "pMap"; it just releases the memory.
*/
-void sysReleaseShmem(MemMapping* pMap);
+void sysReleaseMap(MemMapping* pMap);
+
+#ifdef __cplusplus
+}
+#endif
#endif /*_MINZIP_SYSUTIL*/