diff options
Diffstat (limited to 'src/amiga/map.c')
-rw-r--r-- | src/amiga/map.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/amiga/map.c b/src/amiga/map.c new file mode 100644 index 000000000..0ba7995c6 --- /dev/null +++ b/src/amiga/map.c @@ -0,0 +1,48 @@ +/* + * Copyright (C) the libgit2 contributors. All rights reserved. + * + * This file is part of libgit2, distributed under the GNU GPL v2 with + * a Linking Exception. For full terms see the included COPYING file. + */ +#include <git2/common.h> + +#ifndef GIT_WIN32 + +#include "posix.h" +#include "map.h" +#include <errno.h> + +int p_mmap(git_map *out, size_t len, int prot, int flags, int fd, git_off_t offset) +{ + GIT_MMAP_VALIDATE(out, len, prot, flags); + + out->data = NULL; + out->len = 0; + + if ((prot & GIT_PROT_WRITE) && ((flags & GIT_MAP_TYPE) == GIT_MAP_SHARED)) { + giterr_set(GITERR_OS, "Trying to map shared-writeable"); + return -1; + } + + out->data = malloc(len); + GITERR_CHECK_ALLOC(out->data); + + if ((p_lseek(fd, offset, SEEK_SET) < 0) || ((size_t)p_read(fd, out->data, len) != len)) { + giterr_set(GITERR_OS, "mmap emulation failed"); + return -1; + } + + out->len = len; + return 0; +} + +int p_munmap(git_map *map) +{ + assert(map != NULL); + free(map->data); + + return 0; +} + +#endif + |