# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1439086469 -10800
# Node ID 4767e7769c32c659152b3518e662e74f76c118c9
# Parent  eb07de55d0e672f3b11a849320f3eb30081a6567
packio-simple has more chances to ever get done

diff -r eb07de55d0e6 -r 4767e7769c32 src/memmap.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/memmap.c	Sun Aug 09 05:14:29 2015 +0300
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include "memmap.h"
+
+#if defined(__unix__) || defined(__APPLE__)
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+
+int map_file(struct mmfile *mm, const char *fname)
+{
+	int fd;
+	struct stat st;
+
+	if((fd = open(fname, O_RDONLY)) == -1) {
+		fprintf(stderr, "map_file: failed to open %s: %s\n", fname, strerror(errno));
+		return -1;
+	}
+	fstat(fd, &st);
+
+	if((mm->ptr = mmap(0, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0)) == (void*)-1) {
+		close(fd);
+		fprintf(stderr, "map_file: failed to map file %s: %s\n", fname, strerror(errno));
+		return -1;
+	}
+	mm->size = st.st_size;
+
+	close(fd);
+	return 0;
+}
+
+void unmap_file(struct mmfile *mm)
+{
+	munmap(mm->ptr, mm->size);
+}
+
+#else
+/* implement on win32 */
+#endif
diff -r eb07de55d0e6 -r 4767e7769c32 src/memmap.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/memmap.h	Sun Aug 09 05:14:29 2015 +0300
@@ -0,0 +1,12 @@
+#ifndef MEMMAP_H_
+#define MEMMAP_H_
+
+struct mmfile {
+	void *ptr;
+	unsigned long size;
+};
+
+int map_file(struct mmfile *mm, const char *fname);
+void unmap_file(struct mmfile *mm);
+
+#endif	/* MEMMAP_H_ */
diff -r eb07de55d0e6 -r 4767e7769c32 src/packio.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/packio.c	Sun Aug 09 05:14:29 2015 +0300
@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include "packio_impl.h"
+
+#define MAGIC	"PKIOPKG1"
+#define MAXNAME	255
+
+struct header {
+	char magic[8];
+	int revision;
+	int nfiles;
+};
+
+int pack_load_packfile(struct packfile *pf, const char *fname)
+{
+	FILE *fp;
+	struct header *hdr;
+
+	if(!(fp = fopen(fname, "rb"))) {
+		fprintf(stderr, "failed to open file %s: %s\n", fname, strerror(errno));
+		return -1;
+	}
+
+}
diff -r eb07de55d0e6 -r 4767e7769c32 src/packio_impl.h
--- a/src/packio_impl.h	Sun Aug 09 03:15:07 2015 +0300
+++ b/src/packio_impl.h	Sun Aug 09 05:14:29 2015 +0300
@@ -6,6 +6,18 @@
 struct packfile {
 	int rev;	/* packfile revision */
 	struct rbtree *files;
+
+	unsigned char *maddr;
+	unsigned long msize;
+
+	struct packfile *next;
+};
+
+#define MAXNAME 255
+
+struct fileent {
+	unsigned long offset, size;
+	char name[MAXNAME + 1];
 };
 
 #endif	/* PACKIO_IMPL_H_ */