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fix shared and private mmapping (Unix and Windoze)

This commit is contained in:
Felix von Leitner 2005-04-01 18:44:16 +00:00
parent 1fc8c534a7
commit 16c26cfff8
2 changed files with 4 additions and 4 deletions
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4
mmap/mmap_private.c
View File

@ -12,7 +12,7 @@ char* mmap_private(const char* filename,unsigned long* filesize) {
#ifdef __MINGW32__
HANDLE fd,m;
char* map;
fd=CreateFile(filename,GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
fd=CreateFile(filename,GENERIC_WRITE|GENERIC_READ,FILE_SHARE_WRITE,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
if (fd==INVALID_HANDLE_VALUE)
return 0;
m=CreateFileMapping(fd,0,PAGE_WRITECOPY,0,0,NULL);
@ -27,7 +27,7 @@ char* mmap_private(const char* filename,unsigned long* filesize) {
char *map;
if (fd>=0) {
*filesize=lseek(fd,0,SEEK_END);
map=mmap(0,*filesize,PROT_WRITE,MAP_PRIVATE,fd,0);
map=mmap(0,*filesize,PROT_READ|PROT_WRITE,MAP_PRIVATE,fd,0);
if (map==(char*)-1)
map=0;
close(fd);

4
mmap/mmap_shared.c
View File

@ -12,7 +12,7 @@ extern char* mmap_shared(const char* filename,unsigned long* filesize) {
#ifdef __MINGW32__
HANDLE fd,m;
char* map;
fd=CreateFile(filename,GENERIC_WRITE,FILE_SHARE_WRITE,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
fd=CreateFile(filename,GENERIC_READ|GENERIC_WRITE,FILE_SHARE_WRITE,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
if (fd==INVALID_HANDLE_VALUE)
return 0;
m=CreateFileMapping(fd,0,PAGE_READWRITE,0,0,NULL);
@ -27,7 +27,7 @@ extern char* mmap_shared(const char* filename,unsigned long* filesize) {
char *map;
if (fd>=0) {
*filesize=lseek(fd,0,SEEK_END);
map=mmap(0,*filesize,PROT_WRITE,MAP_SHARED,fd,0);
map=mmap(0,*filesize,PROT_READ|PROT_WRITE,MAP_SHARED,fd,0);
if (map==(char*)-1)
map=0;
close(fd);