/* run-time CPU detection */
static UCS_F_NOOPTIMIZE void ucs_check_cpu_flags(void)
{
char str[256];
char *p_str;
int cpu_flags;
struct {
const char* flag;
ucs_cpu_flag_t value;
} *p_flags,
cpu_flags_array[] = {
{ "cmov", UCS_CPU_FLAG_CMOV },
{ "mmx", UCS_CPU_FLAG_MMX },
{ "mmx2", UCS_CPU_FLAG_MMX2 },
{ "sse", UCS_CPU_FLAG_SSE },
{ "sse2", UCS_CPU_FLAG_SSE2 },
{ "sse3", UCS_CPU_FLAG_SSE3 },
{ "ssse3", UCS_CPU_FLAG_SSSE3 },
{ "sse41", UCS_CPU_FLAG_SSE41 },
{ "sse42", UCS_CPU_FLAG_SSE42 },
{ "avx", UCS_CPU_FLAG_AVX },
{ "avx2", UCS_CPU_FLAG_AVX2 },
{ NULL, UCS_CPU_FLAG_UNKNOWN },
};
cpu_flags = ucs_arch_get_cpu_flag();
if (UCS_CPU_FLAG_UNKNOWN == cpu_flags) {
return ;
}
strncpy(str, UCS_PP_MAKE_STRING(CPU_FLAGS), sizeof(str) - 1);
p_str = strtok(str, " |\t\n\r");
while (p_str) {
p_flags = cpu_flags_array;
while (p_flags && p_flags->flag) {
if (!strcmp(p_str, p_flags->flag)) {
if (!(cpu_flags & p_flags->value)) {
fprintf(stderr, "[%s:%d] FATAL: UCX library was compiled with %s"
" but CPU does not support it.\n",
ucs_get_host_name(), getpid(), p_flags->flag);
exit(1);
}
break;
}
p_flags++;
}
if (NULL == p_flags->flag) {
fprintf(stderr, "[%s:%d] FATAL: UCX library was compiled with %s"
" but CPU does not support it.\n",
ucs_get_host_name(), getpid(), p_str);
exit(1);
}
p_str = strtok(NULL, " |\t\n\r");
}
}
static uint64_t __sumup_host_name(unsigned prime_index)
{
uint64_t sum, n;
const char *p;
unsigned i;
sum = 0;
i = prime_index;
p = ucs_get_host_name();
while (*p != '\0') {
n = 0;
strncpy((char*)&n, p, sizeof(n));
sum += ucs_get_prime(i) * n;
++i;
p += ucs_min(sizeof(n), strlen(p));
}
return sum;
}
static ucs_status_t uct_posix_set_path(char *file_name, int use_shm_open,
const char *path, uint64_t uuid)
{
ucs_status_t status;
int ret, len;
if (!use_shm_open) {
strncpy(file_name, path, NAME_MAX);
}
len = strlen(file_name);
ret = snprintf(file_name + len, NAME_MAX - len,
"/ucx_posix_mm_%s_%s_%016lx", ucs_get_user_name(),
ucs_get_host_name(), uuid);
if ((ret >= (NAME_MAX - len)) || (ret < 1)) {
status = UCS_ERR_INVALID_PARAM;
return status;
}
return UCS_OK;
}
void ucs_log_init()
{
const char *next_token;
if (ucs_log_initialized) {
return;
}
ucs_log_initialized = 1; /* Set this to 1 immediately to avoid infinite recursion */
strcpy(ucs_log_hostname, ucs_get_host_name());
ucs_log_file = stdout;
ucs_log_file_close = 0;
ucs_log_push_handler(ucs_log_default_handler);
if (strlen(ucs_global_opts.log_file) != 0) {
ucs_open_output_stream(ucs_global_opts.log_file, &ucs_log_file,
&ucs_log_file_close, &next_token);
}
ucs_debug("%s loaded at 0x%lx", ucs_debug_get_lib_path(),
ucs_debug_get_lib_base_addr());
}
void ucs_fill_filename_template(const char *tmpl, char *buf, size_t max)
{
char *p, *end;
const char *pf, *pp;
size_t length;
time_t t;
p = buf;
end = buf + max - 1;
*end = 0;
pf = tmpl;
while (*pf != 0 && p < end) {
pp = strchr(pf, '%');
if (pp == NULL) {
strncpy(p, pf, end - p);
p = end;
break;
}
length = ucs_min(pp - pf, end - p);
strncpy(p, pf, length);
p += length;
switch (*(pp + 1)) {
case 'p':
snprintf(p, end - p, "%d", getpid());
pf = pp + 2;
p += strlen(p);
break;
case 'h':
snprintf(p, end - p, "%s", ucs_get_host_name());
pf = pp + 2;
p += strlen(p);
break;
case 'c':
snprintf(p, end - p, "%02d", ucs_get_first_cpu());
pf = pp + 2;
p += strlen(p);
break;
case 't':
t = time(NULL);
strftime(p, end - p, "%Y-%m-%d-%H:%M:%S", localtime(&t));
pf = pp + 2;
p += strlen(p);
break;
case 'u':
snprintf(p, end - p, "%s", basename(ucs_get_user_name()));
pf = pp + 2;
p += strlen(p);
break;
case 'e':
snprintf(p, end - p, "%s", basename(ucs_get_exe()));
pf = pp + 2;
p += strlen(p);
break;
default:
*(p++) = *pp;
pf = pp + 1;
break;
}
p += strlen(p);
}
*p = 0;
}