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fix different PID not loading environment that go wrong #105

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fix different PID not loading environment that go wrong #105

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905150c
fix different PID not loading environment
dustccc Aug 1, 2025
db40344
Merge branch 'main' into main
dustccc Sep 16, 2025
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29 changes: 29 additions & 0 deletions src/multiprocess/multiprocess_memory_limit.c
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,10 @@
#define SEM_WAIT_RETRY_TIMES 30
#endif

#ifndef BUFFER_SIZE
#define BUFFER_SIZE 8192
#endif

int pidfound;

int ctx_activate[32];
Expand Down Expand Up @@ -640,8 +644,33 @@ int set_env_utilization_switch() {
return 0;
}

void load_environ() {
FILE *file = fopen("/proc/1/environ", "r");
if (!file) {
return;
}
char buffer[BUFFER_SIZE];
size_t bytesRead = fread(buffer, 1, sizeof(buffer) - 1, file);
if (bytesRead == 0) {
fclose(file);
return;
}
buffer[bytesRead] = '\0';
size_t i = 0;
while (i < bytesRead) {
char *line = &buffer[i];
size_t len = strlen(line);
if (len > 0) {
putenv(strdup(line));
}
i += len + 1;
}
fclose(file);
}

void try_create_shrreg() {
LOG_DEBUG("Try create shrreg")
load_environ();
if (region_info.fd == -1) {
// use .fd to indicate whether a reinit after fork happen
// no need to register exit handler after fork
Expand Down