source:
azure_iot_hub/trunk/musl-1.1.18/src/ipc/ftok.c@
389
Last change on this file since 389 was 389, checked in by , 5 years ago | |
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File size: 224 bytes |
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1 | #include <sys/ipc.h> |
2 | #include <sys/stat.h> |
3 | |
4 | key_t ftok(const char *path, int id) |
5 | { |
6 | struct stat st; |
7 | if (stat(path, &st) < 0) return -1; |
8 | |
9 | return ((st.st_ino & 0xffff) | ((st.st_dev & 0xff) << 16) | ((id & 0xffu) << 24)); |
10 | } |
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