diff options
Diffstat (limited to 'Utilities/cmlibuv/src/unix/hurd.c')
-rw-r--r-- | Utilities/cmlibuv/src/unix/hurd.c | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/Utilities/cmlibuv/src/unix/hurd.c b/Utilities/cmlibuv/src/unix/hurd.c new file mode 100644 index 0000000000..d19ea63479 --- /dev/null +++ b/Utilities/cmlibuv/src/unix/hurd.c @@ -0,0 +1,167 @@ +/* Copyright libuv project 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. + */ + +#define _GNU_SOURCE 1 + +#include "uv.h" +#include "internal.h" + +#include <hurd.h> +#include <hurd/process.h> +#include <mach/task_info.h> +#include <mach/vm_statistics.h> +#include <mach/vm_param.h> + +#include <inttypes.h> +#include <stddef.h> +#include <unistd.h> +#include <string.h> +#include <limits.h> + +int uv_exepath(char* buffer, size_t* size) { + kern_return_t err; + /* XXX in current Hurd, strings are char arrays of 1024 elements */ + string_t exepath; + ssize_t copied; + + if (buffer == NULL || size == NULL || *size == 0) + return UV_EINVAL; + + if (*size - 1 > 0) { + /* XXX limited length of buffer in current Hurd, this API will probably + * evolve in the future */ + err = proc_get_exe(getproc(), getpid(), exepath); + + if (err) + return UV__ERR(err); + } + + copied = uv__strscpy(buffer, exepath, *size); + + /* do not return error on UV_E2BIG failure */ + *size = copied < 0 ? strlen(buffer) : (size_t) copied; + + return 0; +} + +int uv_resident_set_memory(size_t* rss) { + kern_return_t err; + struct task_basic_info bi; + mach_msg_type_number_t count; + + count = TASK_BASIC_INFO_COUNT; + err = task_info(mach_task_self(), TASK_BASIC_INFO, + (task_info_t) &bi, &count); + + if (err) + return UV__ERR(err); + + *rss = bi.resident_size; + + return 0; +} + +uint64_t uv_get_free_memory(void) { + kern_return_t err; + struct vm_statistics vmstats; + + err = vm_statistics(mach_task_self(), &vmstats); + + if (err) + return 0; + + return vmstats.free_count * vm_page_size; +} + + +uint64_t uv_get_total_memory(void) { + kern_return_t err; + host_basic_info_data_t hbi; + mach_msg_type_number_t cnt; + + cnt = HOST_BASIC_INFO_COUNT; + err = host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t) &hbi, &cnt); + + if (err) + return 0; + + return hbi.memory_size; +} + + +int uv_uptime(double* uptime) { + char buf[128]; + + /* Try /proc/uptime first */ + if (0 == uv__slurp("/proc/uptime", buf, sizeof(buf))) + if (1 == sscanf(buf, "%lf", uptime)) + return 0; + + /* Reimplement here code from procfs to calculate uptime if not mounted? */ + + return UV__ERR(EIO); +} + +void uv_loadavg(double avg[3]) { + char buf[128]; /* Large enough to hold all of /proc/loadavg. */ + + if (0 == uv__slurp("/proc/loadavg", buf, sizeof(buf))) + if (3 == sscanf(buf, "%lf %lf %lf", &avg[0], &avg[1], &avg[2])) + return; + + /* Reimplement here code from procfs to calculate loadavg if not mounted? */ +} + + +int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) { + kern_return_t err; + host_basic_info_data_t hbi; + mach_msg_type_number_t cnt; + + /* Get count of cpus */ + cnt = HOST_BASIC_INFO_COUNT; + err = host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t) &hbi, &cnt); + + if (err) { + err = UV__ERR(err); + goto abort; + } + + /* XXX not implemented on the Hurd */ + *cpu_infos = uv__calloc(hbi.avail_cpus, sizeof(**cpu_infos)); + if (*cpu_infos == NULL) { + err = UV_ENOMEM; + goto abort; + } + + *count = hbi.avail_cpus; + + return 0; + + abort: + *cpu_infos = NULL; + *count = 0; + return err; +} + +uint64_t uv_get_constrained_memory(void) { + return 0; /* Memory constraints are unknown. */ +} |