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springzfx
2020-05-29 19:32:54 +08:00
parent 75751f4887
commit cc83c1ae55
5 changed files with 18 additions and 20 deletions
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6
src/cgroup_attach.cpp
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@@ -17,11 +17,11 @@ string cgroup2_mount_point = get_cgroup2_mount_point();
string get_cgroup2_mount_point() {
stringstream buffer;
FILE *fp = popen("findmnt -t cgroup2 -n -o TARGET", "r");
unique_ptr<FILE, decltype(&pclose)> fp(popen("findmnt -t cgroup2 -n -o TARGET", "r"),
&pclose);
if (!fp) return "";
char buf[READ_SIZE_MAX];
while (fgets(buf, READ_SIZE_MAX, fp) != NULL) { buffer << buf; }
pclose(fp);
while (fgets(buf, READ_SIZE_MAX, fp.get()) != NULL) { buffer << buf; }
string s = buffer.str();
s.pop_back(); // remove newline character
return s;