mirror of
https://git.FreeBSD.org/ports.git
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69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
--- Top/csound.c.old 2011-01-30 01:43:37.000000000 -0600
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+++ Top/csound.c 2011-01-30 01:46:42.000000000 -0600
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@@ -58,7 +58,9 @@
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#include "namedins.h"
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#include "pvfileio.h"
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#include "fftlib.h"
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-
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+#if defined(__FreeBSD__)
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+#include <sys/sysctl.h>
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+#endif
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#if defined(USE_OPENMP)
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#include <omp.h>
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#endif
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@@ -2641,49 +2643,14 @@
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static int getTimeResolution(void)
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{
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#if defined(HAVE_RDTSC)
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- FILE *f;
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- char buf[256];
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+ size_t size;
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+ int timeResolutionSeconds;
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+ size = sizeof timeResolutionSeconds;
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+ sysctlbyname("hw.clockrate", &timeResolutionSeconds, &size, NULL, 0);
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- /* if frequency is not known yet */
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- f = fopen("/proc/cpuinfo", "r");
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- if (UNLIKELY(f == NULL)) {
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- fprintf(stderr, Str("Cannot open /proc/cpuinfo. "
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- "Support for RDTSC is not available.\n"));
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- return -1;
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- }
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- /* find CPU frequency */
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- while (fgets(buf, 256, f) != NULL) {
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- int i;
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- char *s = (char*) buf - 1;
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-
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- buf[255] = '\0'; /* safety */
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- if (strlen(buf) < 9) {
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- continue; /* too short, skip */
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- }
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- while (*++s != '\0')
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- if (isupper(*s)) {
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- *s = tolower(*s); /* convert to lower case */
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- }
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- if (strncmp(buf, "cpu mhz", 7) != 0) {
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- continue; /* check key name */
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- }
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- s = strchr(buf, ':'); /* find frequency value */
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- if (s == NULL) {
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- continue; /* invalid entry */
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- }
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- do {
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- s++;
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- } while (*s == ' ' || *s == '\t'); /* skip white space */
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- i = sscanf(s, "%lf", &timeResolutionSeconds);
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- if (i < 1 || timeResolutionSeconds < 1.0) {
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- timeResolutionSeconds = -1.0; /* invalid entry */
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- continue;
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- }
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- }
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- fclose(f);
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if (UNLIKELY(timeResolutionSeconds <= 0.0)) {
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fprintf(stderr, Str("No valid CPU frequency entry "
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- "was found in /proc/cpuinfo.\n"));
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+ "was found.\n"));
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return -1;
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}
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/* MHz -> seconds */
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