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Micro optimizations

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topjohnwu
2018-11-13 02:07:02 -05:00
parent 9592a69986
commit 3a2a2a4ffa
6 changed files with 26 additions and 26 deletions
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1
native/jni/utils/include/utils.h
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@@ -94,7 +94,6 @@ int is_num(const char *s);
int exec_array(int err, int *fd, void (*cb)(void), const char *argv[]);
int exec_command(int err, int *fd, void (*cb)(void), const char *argv0, ...);
int exec_command_sync(const char *argv0, ...);
int switch_mnt_ns(int pid);
int fork_dont_care();
void gen_rand_str(char *buf, int len);
int strend(const char *s1, const char *s2);

14
native/jni/utils/misc.cpp
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@@ -67,20 +67,6 @@ ssize_t fdgets(char *buf, const size_t size, int fd) {
return len;
}
int switch_mnt_ns(int pid) {
char mnt[32];
snprintf(mnt, sizeof(mnt), "/proc/%d/ns/mnt", pid);
if(access(mnt, R_OK) == -1) return 1; // Maybe process died..
int fd, ret;
fd = xopen(mnt, O_RDONLY);
if (fd < 0) return 1;
// Switch to its namespace
ret = xsetns(fd, 0);
close(fd);
return ret;
}
int fork_dont_care() {
int pid = xfork();
if (pid) {