| /* Copyright Joyent, Inc. and other Node contributors. All rights reserved. |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| */ |
| |
| #include "uv.h" |
| #include "internal.h" |
| |
| #include <assert.h> |
| #include <stdint.h> |
| #include <errno.h> |
| |
| #include <dlfcn.h> |
| #include <mach/mach.h> |
| #include <mach/mach_time.h> |
| #include <mach-o/dyld.h> /* _NSGetExecutablePath */ |
| #include <sys/resource.h> |
| #include <sys/sysctl.h> |
| #include <unistd.h> /* sysconf */ |
| |
| #if !TARGET_OS_IPHONE |
| #include "darwin-stub.h" |
| #endif |
| |
| static uv_once_t once = UV_ONCE_INIT; |
| static uint64_t (*time_func)(void); |
| static mach_timebase_info_data_t timebase; |
| |
| typedef unsigned char UInt8; |
| |
| int uv__platform_loop_init(uv_loop_t* loop) { |
| loop->cf_state = NULL; |
| |
| if (uv__kqueue_init(loop)) |
| return UV__ERR(errno); |
| |
| return 0; |
| } |
| |
| |
| void uv__platform_loop_delete(uv_loop_t* loop) { |
| uv__fsevents_loop_delete(loop); |
| } |
| |
| |
| static void uv__hrtime_init_once(void) { |
| if (KERN_SUCCESS != mach_timebase_info(&timebase)) |
| abort(); |
| |
| time_func = (uint64_t (*)(void)) dlsym(RTLD_DEFAULT, "mach_continuous_time"); |
| if (time_func == NULL) |
| time_func = mach_absolute_time; |
| } |
| |
| |
| uint64_t uv__hrtime(uv_clocktype_t type) { |
| uv_once(&once, uv__hrtime_init_once); |
| return time_func() * timebase.numer / timebase.denom; |
| } |
| |
| |
| int uv_exepath(char* buffer, size_t* size) { |
| /* realpath(exepath) may be > PATH_MAX so double it to be on the safe side. */ |
| char abspath[PATH_MAX * 2 + 1]; |
| char exepath[PATH_MAX + 1]; |
| uint32_t exepath_size; |
| size_t abspath_size; |
| |
| if (buffer == NULL || size == NULL || *size == 0) |
| return UV_EINVAL; |
| |
| exepath_size = sizeof(exepath); |
| if (_NSGetExecutablePath(exepath, &exepath_size)) |
| return UV_EIO; |
| |
| if (realpath(exepath, abspath) != abspath) |
| return UV__ERR(errno); |
| |
| abspath_size = strlen(abspath); |
| if (abspath_size == 0) |
| return UV_EIO; |
| |
| *size -= 1; |
| if (*size > abspath_size) |
| *size = abspath_size; |
| |
| memcpy(buffer, abspath, *size); |
| buffer[*size] = '\0'; |
| |
| return 0; |
| } |
| |
| |
| uint64_t uv_get_free_memory(void) { |
| vm_statistics_data_t info; |
| mach_msg_type_number_t count = sizeof(info) / sizeof(integer_t); |
| |
| if (host_statistics(mach_host_self(), HOST_VM_INFO, |
| (host_info_t)&info, &count) != KERN_SUCCESS) { |
| return UV_EINVAL; /* FIXME(bnoordhuis) Translate error. */ |
| } |
| |
| return (uint64_t) info.free_count * sysconf(_SC_PAGESIZE); |
| } |
| |
| |
| uint64_t uv_get_total_memory(void) { |
| uint64_t info; |
| int which[] = {CTL_HW, HW_MEMSIZE}; |
| size_t size = sizeof(info); |
| |
| if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0)) |
| return UV__ERR(errno); |
| |
| return (uint64_t) info; |
| } |
| |
| |
| uint64_t uv_get_constrained_memory(void) { |
| return 0; /* Memory constraints are unknown. */ |
| } |
| |
| |
| void uv_loadavg(double avg[3]) { |
| struct loadavg info; |
| size_t size = sizeof(info); |
| int which[] = {CTL_VM, VM_LOADAVG}; |
| |
| if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0) < 0) return; |
| |
| avg[0] = (double) info.ldavg[0] / info.fscale; |
| avg[1] = (double) info.ldavg[1] / info.fscale; |
| avg[2] = (double) info.ldavg[2] / info.fscale; |
| } |
| |
| |
| int uv_resident_set_memory(size_t* rss) { |
| mach_msg_type_number_t count; |
| task_basic_info_data_t info; |
| kern_return_t err; |
| |
| count = TASK_BASIC_INFO_COUNT; |
| err = task_info(mach_task_self(), |
| TASK_BASIC_INFO, |
| (task_info_t) &info, |
| &count); |
| (void) &err; |
| /* task_info(TASK_BASIC_INFO) cannot really fail. Anything other than |
| * KERN_SUCCESS implies a libuv bug. |
| */ |
| assert(err == KERN_SUCCESS); |
| *rss = info.resident_size; |
| |
| return 0; |
| } |
| |
| |
| int uv_uptime(double* uptime) { |
| time_t now; |
| struct timeval info; |
| size_t size = sizeof(info); |
| static int which[] = {CTL_KERN, KERN_BOOTTIME}; |
| |
| if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0)) |
| return UV__ERR(errno); |
| |
| now = time(NULL); |
| *uptime = now - info.tv_sec; |
| |
| return 0; |
| } |
| |
| static int uv__get_cpu_speed(uint64_t* speed) { |
| /* IOKit */ |
| void (*pIOObjectRelease)(io_object_t); |
| kern_return_t (*pIOMasterPort)(mach_port_t, mach_port_t*); |
| CFMutableDictionaryRef (*pIOServiceMatching)(const char*); |
| kern_return_t (*pIOServiceGetMatchingServices)(mach_port_t, |
| CFMutableDictionaryRef, |
| io_iterator_t*); |
| io_service_t (*pIOIteratorNext)(io_iterator_t); |
| CFTypeRef (*pIORegistryEntryCreateCFProperty)(io_registry_entry_t, |
| CFStringRef, |
| CFAllocatorRef, |
| IOOptionBits); |
| |
| /* CoreFoundation */ |
| CFStringRef (*pCFStringCreateWithCString)(CFAllocatorRef, |
| const char*, |
| CFStringEncoding); |
| CFStringEncoding (*pCFStringGetSystemEncoding)(void); |
| UInt8 *(*pCFDataGetBytePtr)(CFDataRef); |
| CFIndex (*pCFDataGetLength)(CFDataRef); |
| void (*pCFDataGetBytes)(CFDataRef, CFRange, UInt8*); |
| void (*pCFRelease)(CFTypeRef); |
| |
| void* core_foundation_handle; |
| void* iokit_handle; |
| int err; |
| |
| kern_return_t kr; |
| mach_port_t mach_port; |
| io_iterator_t it; |
| io_object_t service; |
| |
| mach_port = 0; |
| |
| err = UV_ENOENT; |
| core_foundation_handle = dlopen("/System/Library/Frameworks/" |
| "CoreFoundation.framework/" |
| "Versions/A/CoreFoundation", |
| RTLD_LAZY | RTLD_LOCAL); |
| iokit_handle = dlopen("/System/Library/Frameworks/IOKit.framework/" |
| "Versions/A/IOKit", |
| RTLD_LAZY | RTLD_LOCAL); |
| |
| if (core_foundation_handle == NULL || iokit_handle == NULL) |
| goto out; |
| |
| #define V(handle, symbol) \ |
| do { \ |
| *(void **)(&p ## symbol) = dlsym((handle), #symbol); \ |
| if (p ## symbol == NULL) \ |
| goto out; \ |
| } \ |
| while (0) |
| V(iokit_handle, IOMasterPort); |
| V(iokit_handle, IOServiceMatching); |
| V(iokit_handle, IOServiceGetMatchingServices); |
| V(iokit_handle, IOIteratorNext); |
| V(iokit_handle, IOObjectRelease); |
| V(iokit_handle, IORegistryEntryCreateCFProperty); |
| V(core_foundation_handle, CFStringCreateWithCString); |
| V(core_foundation_handle, CFStringGetSystemEncoding); |
| V(core_foundation_handle, CFDataGetBytePtr); |
| V(core_foundation_handle, CFDataGetLength); |
| V(core_foundation_handle, CFDataGetBytes); |
| V(core_foundation_handle, CFRelease); |
| #undef V |
| |
| #define S(s) pCFStringCreateWithCString(NULL, (s), kCFStringEncodingUTF8) |
| |
| kr = pIOMasterPort(MACH_PORT_NULL, &mach_port); |
| assert(kr == KERN_SUCCESS); |
| CFMutableDictionaryRef classes_to_match |
| = pIOServiceMatching("IOPlatformDevice"); |
| kr = pIOServiceGetMatchingServices(mach_port, classes_to_match, &it); |
| assert(kr == KERN_SUCCESS); |
| service = pIOIteratorNext(it); |
| |
| CFStringRef device_type_str = S("device_type"); |
| CFStringRef clock_frequency_str = S("clock-frequency"); |
| |
| while (service != 0) { |
| CFDataRef data; |
| data = pIORegistryEntryCreateCFProperty(service, |
| device_type_str, |
| NULL, |
| 0); |
| if (data) { |
| const UInt8* raw = pCFDataGetBytePtr(data); |
| if (strncmp((char*)raw, "cpu", 3) == 0 || |
| strncmp((char*)raw, "processor", 9) == 0) { |
| CFDataRef freq_ref; |
| freq_ref = pIORegistryEntryCreateCFProperty(service, |
| clock_frequency_str, |
| NULL, |
| 0); |
| if (freq_ref) { |
| uint32_t freq; |
| CFIndex len = pCFDataGetLength(freq_ref); |
| CFRange range; |
| range.location = 0; |
| range.length = len; |
| |
| pCFDataGetBytes(freq_ref, range, (UInt8*)&freq); |
| *speed = freq; |
| pCFRelease(freq_ref); |
| pCFRelease(data); |
| break; |
| } |
| } |
| pCFRelease(data); |
| } |
| |
| service = pIOIteratorNext(it); |
| } |
| |
| pIOObjectRelease(it); |
| |
| err = 0; |
| out: |
| if (core_foundation_handle != NULL) |
| dlclose(core_foundation_handle); |
| |
| if (iokit_handle != NULL) |
| dlclose(iokit_handle); |
| |
| mach_port_deallocate(mach_task_self(), mach_port); |
| |
| return err; |
| } |
| |
| int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) { |
| unsigned int ticks = (unsigned int)sysconf(_SC_CLK_TCK), |
| multiplier = ((uint64_t)1000L / ticks); |
| char model[512]; |
| size_t size; |
| unsigned int i; |
| natural_t numcpus; |
| mach_msg_type_number_t msg_type; |
| processor_cpu_load_info_data_t *info; |
| uv_cpu_info_t* cpu_info; |
| uint64_t cpuspeed; |
| int err; |
| |
| size = sizeof(model); |
| if (sysctlbyname("machdep.cpu.brand_string", &model, &size, NULL, 0) && |
| sysctlbyname("hw.model", &model, &size, NULL, 0)) { |
| return UV__ERR(errno); |
| } |
| |
| err = uv__get_cpu_speed(&cpuspeed); |
| if (err < 0) |
| return err; |
| |
| if (host_processor_info(mach_host_self(), PROCESSOR_CPU_LOAD_INFO, &numcpus, |
| (processor_info_array_t*)&info, |
| &msg_type) != KERN_SUCCESS) { |
| return UV_EINVAL; /* FIXME(bnoordhuis) Translate error. */ |
| } |
| |
| *cpu_infos = uv__malloc(numcpus * sizeof(**cpu_infos)); |
| if (!(*cpu_infos)) { |
| vm_deallocate(mach_task_self(), (vm_address_t)info, msg_type); |
| return UV_ENOMEM; |
| } |
| |
| *count = numcpus; |
| |
| for (i = 0; i < numcpus; i++) { |
| cpu_info = &(*cpu_infos)[i]; |
| |
| cpu_info->cpu_times.user = (uint64_t)(info[i].cpu_ticks[0]) * multiplier; |
| cpu_info->cpu_times.nice = (uint64_t)(info[i].cpu_ticks[3]) * multiplier; |
| cpu_info->cpu_times.sys = (uint64_t)(info[i].cpu_ticks[1]) * multiplier; |
| cpu_info->cpu_times.idle = (uint64_t)(info[i].cpu_ticks[2]) * multiplier; |
| cpu_info->cpu_times.irq = 0; |
| |
| cpu_info->model = uv__strdup(model); |
| cpu_info->speed = cpuspeed/1000000; |
| } |
| vm_deallocate(mach_task_self(), (vm_address_t)info, msg_type); |
| |
| return 0; |
| } |