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Diffstat (limited to 'src/base/mmap/mmap.c')
-rw-r--r--src/base/mmap/mmap.c35
1 files changed, 17 insertions, 18 deletions
diff --git a/src/base/mmap/mmap.c b/src/base/mmap/mmap.c
index e5cedbb..c3709d7 100644
--- a/src/base/mmap/mmap.c
+++ b/src/base/mmap/mmap.c
@@ -3,37 +3,36 @@
mmap·Reader
mmap·open(byte *filename)
{
- int fd;
int err;
void *buf;
- io·Stream *s;
- io·Stat st;
+ io·Buffer io;
+ sys·Info info;
+ mmap·Reader rdr = {0};
- s = io·open(filename, "r");
- fd = io·fd(s);
- err = io·stat(s, &st);
- if(err){
+ if(io·open(filename, sys·ORead, &io)){
+ errorf("failed to open %s", filename);
+ goto done;
+ }
+
+ if(sys·infofd(io.fd, &info)){
errorf("file stat: error code %d", err);
- goto ERROR;
+ goto done;
}
- buf = mmap(nil, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
- if(!buf){
+ if(sys·mmap(nil, info.size, sys·ProtRead, sys·MapShared, io.fd, 0, &buf)){
errorf("mmap: failed");
- goto ERROR;
+ goto done;
}
// NOTE: posix systems require that reference kept to mmap file after fd is closed
- io·close(s);
- return (mmap·Reader){.len=st.st_size, .b=buf};
-
-ERROR:
- io·close(s);
- return (mmap·Reader){ 0 };
+ rdr = (mmap·Reader){.len=info.size, .b=buf};
+done:
+ io·close((io·Header*)&io);
+ return rdr;
}
int
mmap·close(mmap·Reader rdr)
{
- munmap(rdr.b, rdr.len);
+ sys·munmap(rdr.b, rdr.len);
return 0;
}