diff options
Diffstat (limited to 'lib/os_mon/c_src/cpu_sup.c')
| -rw-r--r-- | lib/os_mon/c_src/cpu_sup.c | 94 |
1 files changed, 87 insertions, 7 deletions
diff --git a/lib/os_mon/c_src/cpu_sup.c b/lib/os_mon/c_src/cpu_sup.c index 20bb9ce391..9e217db105 100644 --- a/lib/os_mon/c_src/cpu_sup.c +++ b/lib/os_mon/c_src/cpu_sup.c @@ -53,7 +53,6 @@ #endif #if defined(__linux__) -#include <string.h> /* strlen */ #define PROCSTAT "/proc/stat" #define BUFFERSIZE (256) @@ -73,6 +72,13 @@ typedef struct { #endif +#if defined(__FreeBSD__) +#include <sys/resource.h> +#include <sys/sysctl.h> +#define CU_BSD_VALUES (6) +#endif + + #define FD_IN (0) #define FD_OUT (1) #define FD_ERR (2) @@ -157,12 +163,16 @@ static int processors_online() { } #endif +#if defined(__FreeBSD__) +void getsysctl(const char *, void *, size_t); +#endif + int main(int argc, char** argv) { char cmd; int rc; int sz; unsigned int *rv; -#if defined(__linux__) +#if defined(__linux__) || defined(__FreeBSD__) unsigned int no_of_cpus = 0; #endif @@ -175,7 +185,14 @@ int main(int argc, char** argv) { #if defined(__linux__) no_of_cpus = processors_online(); if ( (rv = (unsigned int*)malloc(sizeof(unsigned int)*(2 + 2*no_of_cpus*CU_VALUES))) == NULL) { - error("cpu_cup: malloc error"); + error("cpu_sup: malloc error"); + } +#endif + +#if defined(__FreeBSD__) + getsysctl("hw.ncpu", &no_of_cpus, sizeof(int)); + if ( (rv = (unsigned int*)malloc(sizeof(unsigned int)*(2 + 2*no_of_cpus*CU_BSD_VALUES))) == NULL) { + error("cpu_sup: malloc error"); } #endif @@ -204,14 +221,14 @@ int main(int argc, char** argv) { case AVG5: bsd_loadavg(1); break; case AVG15: bsd_loadavg(2); break; #endif -#if defined(__sun__) || defined(__linux__) +#if defined(__sun__) || defined(__linux__) || defined(__FreeBSD__) case UTIL: util_measure(&rv,&sz); sendv(rv, sz); break; #endif case QUIT: free((void*)rv); return 0; default: error("Bad command"); break; } } - return 0; /* supress warnings */ + return 0; /* suppress warnings */ } /* ---------------------------- * @@ -520,6 +537,71 @@ static void util_measure(unsigned int **result_vec, int *result_sz) { #endif /* ---------------------------- * + * FreeBSD stat functions * + * ---------------------------- */ + +#if defined(__FreeBSD__) + +#define EXIT_WITH(msg) (rich_error(msg, __FILE__, __LINE__)) +#define RICH_BUFLEN (213) /* left in error(char*) */ + +void rich_error(const char *reason, const char *file, const int line) { + char buf[RICH_BUFLEN]; + snprintf(buf, RICH_BUFLEN, "%s (%s:%i)", reason, file, line); + error(buf); +} +#undef RICH_BUFLEN + +static void util_measure(unsigned int **result_vec, int *result_sz) { + int no_of_cpus; + size_t size_cpu_times; + unsigned long *cpu_times; + unsigned int *rv = NULL; + int i; + + getsysctl("hw.ncpu", &no_of_cpus, sizeof(int)); + /* Header constant CPUSTATES = #long values per cpu. */ + size_cpu_times = sizeof(long) * CPUSTATES * no_of_cpus; + cpu_times = malloc(size_cpu_times); + if (!cpu_times) { + EXIT_WITH("badalloc"); + } + getsysctl("kern.cp_times", cpu_times, size_cpu_times); + + rv = *result_vec; + rv[0] = no_of_cpus; + rv[1] = CU_BSD_VALUES; + ++rv; /* first value is number of cpus */ + ++rv; /* second value is number of entries */ + + for (i = 0; i < no_of_cpus; ++i) { + int offset = i * CPUSTATES; + rv[ 0] = CU_CPU_ID; rv[ 1] = i; + rv[ 2] = CU_USER; rv[ 3] = cpu_times[CP_USER + offset]; + rv[ 4] = CU_NICE_USER; rv[ 5] = cpu_times[CP_NICE + offset]; + rv[ 6] = CU_KERNEL; rv[ 7] = cpu_times[CP_SYS + offset]; + rv[ 8] = CU_IDLE; rv[ 9] = cpu_times[CP_IDLE + offset]; + rv[10] = CU_HARD_IRQ; rv[11] = cpu_times[CP_INTR + offset]; + rv += CU_BSD_VALUES*2; + } + + *result_sz = 2 + 2*CU_BSD_VALUES * no_of_cpus; +} + +void getsysctl(const char *name, void *ptr, size_t len) +{ + size_t gotlen = len; + if (sysctlbyname(name, ptr, &gotlen, NULL, 0) != 0) { + EXIT_WITH("sysctlbyname failed"); + } + if (gotlen != len) { + EXIT_WITH("sysctlbyname: unexpected length"); + } +} +#endif + + +/* ---------------------------- * * Generic functions * * ---------------------------- */ @@ -581,5 +663,3 @@ static void error(char* err_msg) { ; exit(-1); } - - |