DragonFly On-Line Manual Pages
mmap_read(3) DragonFly Library Functions Manual mmap_read(3)
NAME
mmap_read - memory map a file for reading
SYNTAX
#include <mmap.h>
char* mmap_read(const char* filename,size_t* filesize);
DESCRIPTION
mmap_read opens filename for reading, maps the whole file into memory,
closes the file, writes the length of the file to filesize and returns
a pointer to the mapped file.
The file is unmapped by the operating system if the process terminates.
It can also be manually unmapped by calling munmap from <sys/mman.h>.
If the file could not be opened or mapped, (void*)0 is returned.
SEE ALSO
mmap_unmap(3)
mmap_read(3)