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Improve documentation

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The Cosmo API documentation page is pretty good now
https://justine.lol/cosmopolitan/documentation.html
This commit is contained in:
Justine Tunney 2020-12-27 07:02:35 -08:00
parent 13437dd19b
commit 1bc3a25505
367 changed files with 2542 additions and 26178 deletions
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14
libc/runtime/directmap.c
View file

@ -21,12 +21,20 @@
#include "libc/nt/runtime.h"
#include "libc/runtime/directmap.h"
struct DirectMap DirectMap(void *addr, size_t size, unsigned prot,
unsigned flags, int fd, int64_t off) {
/**
* Obtains memory mapping directly from system.
*
* The mmap() function needs to track memory mappings in order to
* support Windows NT and Address Sanitizer. That memory tracking can be
* bypassed by calling this function. However the caller is responsible
* for passing the magic memory handle on Windows NT to CloseHandle().
*/
struct DirectMap __mmap(void *addr, size_t size, unsigned prot, unsigned flags,
int fd, int64_t off) {
if (!IsWindows()) {
return (struct DirectMap){mmap$sysv(addr, size, prot, flags, fd, off),
kNtInvalidHandleValue};
} else {
return DirectMapNt(addr, size, prot, flags, fd, off);
return __mmap$nt(addr, size, prot, flags, fd, off);
}
}