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sunos: look up free memory with sysconf(_SC_AVPHYS_PAGES)

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This commit is contained in:
Ben Noordhuis 2011-10-12 00:27:30 +00:00
parent 7b01ad1685
commit e0a4e72640
2 changed files with 6 additions and 21 deletions
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24
src/unix/sunos.c
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@ -65,28 +65,9 @@ int uv_exepath(char* buffer, size_t* size) {
return (0);
}
double uv_get_free_memory(void) {
kstat_ctl_t *kc;
kstat_t *ksp;
kstat_named_t *knp;
ulong_t freemem;
if ((kc = kstat_open()) == NULL) return -1;
ksp = kstat_lookup(kc, (char *)"unix", 0, (char *)"system_pages");
if(kstat_read(kc, ksp, NULL) == -1){
return -1;
}
else {
knp = (kstat_named_t *) kstat_data_lookup(ksp, (char *)"freemem");
freemem = knp->value.ul;
}
kstat_close(kc);
return (double) freemem * sysconf(_SC_PAGESIZE);
return (double) sysconf(_SC_PAGESIZE) * sysconf(_SC_AVPHYS_PAGES);
}
@ -94,6 +75,7 @@ double uv_get_total_memory(void) {
return (double) sysconf(_SC_PAGESIZE) * sysconf(_SC_PHYS_PAGES);
}
void uv_loadavg(double avg[3]) {
(void) getloadavg(avg, 3);
}

3
test/test-get-memory.c
View File

@ -26,8 +26,11 @@ TEST_IMPL(get_memory) {
double free_mem = uv_get_free_memory();
double total_mem = uv_get_total_memory();
printf("free_mem=%.0f, total_mem=%.0f\n", free_mem, total_mem);
ASSERT(free_mem > 0);
ASSERT(total_mem > 0);
ASSERT(total_mem > free_mem);
return 0;
}