本文整理汇总了C++中snprintfz函数的典型用法代码示例。如果您正苦于以下问题：C++ snprintfz函数的具体用法？C++ snprintfz怎么用？C++ snprintfz使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了snprintfz函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: calculated_number_fabs
static inline char *format_value_with_precision_and_unit(char *value_string, size_t value_string_len, calculated_number value, const char *units, int precision) {
if(unlikely(isnan(value) || isinf(value)))
value = 0.0;
char *separator = "";
if(unlikely(isalnum(*units)))
separator = " ";
if(precision < 0) {
int len, lstop = 0, trim_zeros = 1;
calculated_number abs = value;
if(isless(value, 0)) {
lstop = 1;
abs = calculated_number_fabs(value);
}
if(isgreaterequal(abs, 1000)) {
len = snprintfz(value_string, value_string_len, "%0.0" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
trim_zeros = 0;
}
else if(isgreaterequal(abs, 10)) len = snprintfz(value_string, value_string_len, "%0.1" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
else if(isgreaterequal(abs, 1)) len = snprintfz(value_string, value_string_len, "%0.2" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
else if(isgreaterequal(abs, 0.1)) len = snprintfz(value_string, value_string_len, "%0.2" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
else if(isgreaterequal(abs, 0.01)) len = snprintfz(value_string, value_string_len, "%0.4" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
else if(isgreaterequal(abs, 0.001)) len = snprintfz(value_string, value_string_len, "%0.5" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
else if(isgreaterequal(abs, 0.0001)) len = snprintfz(value_string, value_string_len, "%0.6" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
else len = snprintfz(value_string, value_string_len, "%0.7" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE) value);
if(unlikely(trim_zeros)) {
int l;
// remove trailing zeros from the decimal part
for(l = len - 1; l > lstop; l--) {
if(likely(value_string[l] == '0')) {
value_string[l] = '\0';
len--;
}
else if(unlikely(value_string[l] == '.')) {
value_string[l] = '\0';
len--;
break;
}
else
break;
}
}
if(unlikely(len <= 0)) len = 1;
snprintfz(&value_string[len], value_string_len - len, "%s%s", separator, units);
}
else {
if(precision > 50) precision = 50;
snprintfz(value_string, value_string_len, "%0.*" LONG_DOUBLE_MODIFIER "%s%s", precision, (LONG_DOUBLE) value, separator, units);
}
return value_string;
}
开发者ID:leirenzhichui，项目名称:netdata，代码行数:59，代码来源:web_buffer_svg.c
示例2: read_cgroup_plugin_configuration
void read_cgroup_plugin_configuration() {
cgroup_check_for_new_every = config_get_number("plugin:cgroups", "check for new cgroups every", cgroup_check_for_new_every);
cgroup_enable_cpuacct_stat = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct stat", cgroup_enable_cpuacct_stat);
cgroup_enable_cpuacct_usage = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct usage", cgroup_enable_cpuacct_usage);
cgroup_enable_memory = config_get_boolean_ondemand("plugin:cgroups", "enable memory", cgroup_enable_memory);
cgroup_enable_blkio = config_get_boolean_ondemand("plugin:cgroups", "enable blkio", cgroup_enable_blkio);
char filename[FILENAME_MAX + 1], *s;
struct mountinfo *mi, *root = mountinfo_read();
mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "cpuacct");
if(!mi) mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "cpuacct");
if(!mi) {
error("Cannot find cgroup cpuacct mountinfo. Assuming default: /sys/fs/cgroup/cpuacct");
s = "/sys/fs/cgroup/cpuacct";
}
else s = mi->mount_point;
snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
cgroup_cpuacct_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/cpuacct", filename);
mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "blkio");
if(!mi) mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "blkio");
if(!mi) {
error("Cannot find cgroup blkio mountinfo. Assuming default: /sys/fs/cgroup/blkio");
s = "/sys/fs/cgroup/blkio";
}
else s = mi->mount_point;
snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
cgroup_blkio_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/blkio", filename);
mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "memory");
if(!mi) mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "memory");
if(!mi) {
error("Cannot find cgroup memory mountinfo. Assuming default: /sys/fs/cgroup/memory");
s = "/sys/fs/cgroup/memory";
}
else s = mi->mount_point;
snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
cgroup_memory_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/memory", filename);
mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "devices");
if(!mi) mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "devices");
if(!mi) {
error("Cannot find cgroup devices mountinfo. Assuming default: /sys/fs/cgroup/devices");
s = "/sys/fs/cgroup/devices";
}
else s = mi->mount_point;
snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, s);
cgroup_devices_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/devices", filename);
cgroup_root_max = config_get_number("plugin:cgroups", "max cgroups to allow", cgroup_root_max);
cgroup_max_depth = config_get_number("plugin:cgroups", "max cgroups depth to monitor", cgroup_max_depth);
cgroup_enable_new_cgroups_detected_at_runtime = config_get_boolean("plugin:cgroups", "enable new cgroups detected at run time", cgroup_enable_new_cgroups_detected_at_runtime);
mountinfo_free(root);
}
开发者ID:TotoYY，项目名称:netdata，代码行数:58，代码来源:sys_fs_cgroup.c
示例3: registry_set_cookie
static void registry_set_cookie(struct web_client *w, const char *guid) {
char edate[100];
time_t et = now_realtime_sec() + registry.persons_expiration;
struct tm etmbuf, *etm = gmtime_r(&et, &etmbuf);
strftime(edate, sizeof(edate), "%a, %d %b %Y %H:%M:%S %Z", etm);
snprintfz(w->cookie1, NETDATA_WEB_REQUEST_COOKIE_SIZE, NETDATA_REGISTRY_COOKIE_NAME "=%s; Expires=%s", guid, edate);
if(registry.registry_domain && registry.registry_domain[0])
snprintfz(w->cookie2, NETDATA_WEB_REQUEST_COOKIE_SIZE, NETDATA_REGISTRY_COOKIE_NAME "=%s; Domain=%s; Expires=%s", guid, registry.registry_domain, edate);
}
开发者ID:cppmx，项目名称:netdata，代码行数:11，代码来源:registry.c
示例4: config_get
char *rrdset_cache_dir(const char *id)
{
char *ret = NULL;
static char *cache_dir = NULL;
if(!cache_dir) {
cache_dir = config_get("global", "cache directory", CACHE_DIR);
int r = mkdir(cache_dir, 0755);
if(r != 0 && errno != EEXIST)
error("Cannot create directory '%s'", cache_dir);
}
char b[FILENAME_MAX + 1];
char n[FILENAME_MAX + 1];
rrdset_strncpyz_name(b, id, FILENAME_MAX);
snprintfz(n, FILENAME_MAX, "%s/%s", cache_dir, b);
ret = config_get(id, "cache directory", n);
if(rrd_memory_mode == RRD_MEMORY_MODE_MAP || rrd_memory_mode == RRD_MEMORY_MODE_SAVE) {
int r = mkdir(ret, 0775);
if(r != 0 && errno != EEXIST)
error("Cannot create directory '%s'", ret);
}
return ret;
}
开发者ID:4224657，项目名称:netdata，代码行数:27，代码来源:rrd.c
示例5: do_proc_sys_kernel_random_entropy_avail
int do_proc_sys_kernel_random_entropy_avail(int update_every, usec_t dt) {
(void)dt;
static procfile *ff = NULL;
if(unlikely(!ff)) {
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/proc/sys/kernel/random/entropy_avail");
ff = procfile_open(config_get("plugin:proc:/proc/sys/kernel/random/entropy_avail", "filename to monitor", filename), "", PROCFILE_FLAG_DEFAULT);
if(unlikely(!ff)) return 1;
}
ff = procfile_readall(ff);
if(unlikely(!ff)) return 0; // we return 0, so that we will retry to open it next time
unsigned long long entropy = str2ull(procfile_lineword(ff, 0, 0));
RRDSET *st = rrdset_find_bytype("system", "entropy");
if(unlikely(!st)) {
st = rrdset_create("system", "entropy", NULL, "entropy", NULL, "Available Entropy", "entropy", 1000, update_every, RRDSET_TYPE_LINE);
rrddim_add(st, "entropy", NULL, 1, 1, RRDDIM_ABSOLUTE);
}
else rrdset_next(st);
rrddim_set(st, "entropy", entropy);
rrdset_done(st);
return 0;
}
开发者ID:rlugojr，项目名称:netdata，代码行数:29，代码来源:proc_sys_kernel_random_entropy_avail.c
示例6: savememory
int savememory(const char *filename, void *mem, size_t size) {
char tmpfilename[FILENAME_MAX + 1];
snprintfz(tmpfilename, FILENAME_MAX, "%s.%ld.tmp", filename, (long) getpid());
int fd = open(tmpfilename, O_RDWR | O_CREAT | O_NOATIME, 0664);
if (fd < 0) {
error("Cannot create/open file '%s'.", filename);
return -1;
}
if (write(fd, mem, size) != (ssize_t) size) {
error("Cannot write to file '%s' %ld bytes.", filename, (long) size);
close(fd);
return -1;
}
close(fd);
if (rename(tmpfilename, filename)) {
error("Cannot rename '%s' to '%s'", tmpfilename, filename);
return -1;
}
return 0;
}
开发者ID:johan--，项目名称:netdata，代码行数:26，代码来源:common.c
示例7: rrddim_set_name
void rrddim_set_name(RRDSET *st, RRDDIM *rd, const char *name)
{
debug(D_RRD_CALLS, "rrddim_set_name() %s.%s", st->name, rd->name);
char varname[CONFIG_MAX_NAME + 1];
snprintfz(varname, CONFIG_MAX_NAME, "dim %s name", rd->id);
config_set_default(st->id, varname, name);
}
开发者ID:4224657，项目名称:netdata，代码行数:8，代码来源:rrd.c
示例8: log_init
void log_init(void) {
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s/debug.log", netdata_configured_log_dir);
stdout_filename = config_get(CONFIG_SECTION_GLOBAL, "debug log", filename);
snprintfz(filename, FILENAME_MAX, "%s/error.log", netdata_configured_log_dir);
stderr_filename = config_get(CONFIG_SECTION_GLOBAL, "error log", filename);
snprintfz(filename, FILENAME_MAX, "%s/access.log", netdata_configured_log_dir);
stdaccess_filename = config_get(CONFIG_SECTION_GLOBAL, "access log", filename);
error_log_throttle_period_backup =
error_log_throttle_period = config_get_number(CONFIG_SECTION_GLOBAL, "errors flood protection period", error_log_throttle_period);
error_log_errors_per_period = (unsigned long)config_get_number(CONFIG_SECTION_GLOBAL, "errors to trigger flood protection", (long long int)error_log_errors_per_period);
setenv("NETDATA_ERRORS_THROTTLE_PERIOD", config_get(CONFIG_SECTION_GLOBAL, "errors flood protection period" , ""), 1);
setenv("NETDATA_ERRORS_PER_PERIOD", config_get(CONFIG_SECTION_GLOBAL, "errors to trigger flood protection", ""), 1);
}
开发者ID:Peoplecantfly，项目名称:netdata，代码行数:18，代码来源:main.c
示例9: get_system_cpus
long get_system_cpus(void) {
processors = 1;
#ifdef __APPLE__
int32_t tmp_processors;
if (unlikely(GETSYSCTL_BY_NAME("hw.logicalcpu", tmp_processors))) {
error("Assuming system has %d processors.", processors);
} else {
processors = tmp_processors;
}
return processors;
#elif __FreeBSD__
int32_t tmp_processors;
if (unlikely(GETSYSCTL_BY_NAME("hw.ncpu", tmp_processors))) {
error("Assuming system has %d processors.", processors);
} else {
processors = tmp_processors;
}
return processors;
#else
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s/proc/stat", netdata_configured_host_prefix);
procfile *ff = procfile_open(filename, NULL, PROCFILE_FLAG_DEFAULT);
if(!ff) {
error("Cannot open file '%s'. Assuming system has %d processors.", filename, processors);
return processors;
}
ff = procfile_readall(ff);
if(!ff) {
error("Cannot open file '%s'. Assuming system has %d processors.", filename, processors);
return processors;
}
processors = 0;
unsigned int i;
for(i = 0; i < procfile_lines(ff); i++) {
if(!procfile_linewords(ff, i)) continue;
if(strncmp(procfile_lineword(ff, i, 0), "cpu", 3) == 0) processors++;
}
processors--;
if(processors < 1) processors = 1;
procfile_close(ff);
debug(D_SYSTEM, "System has %d processors.", processors);
return processors;
#endif /* __APPLE__, __FreeBSD__ */
}
开发者ID:tvieira，项目名称:netdata，代码行数:57，代码来源:common.c
示例10: find_all_mc
static void find_all_mc() {
char name[FILENAME_MAX + 1];
snprintfz(name, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/devices/system/edac/mc");
char *dirname = config_get("plugin:proc:/sys/devices/system/edac/mc", "directory to monitor", name);
DIR *dir = opendir(dirname);
if(unlikely(!dir)) {
error("Cannot read ECC memory errors directory '%s'", dirname);
return;
}
struct dirent *de = NULL;
while((de = readdir(dir))) {
if(de->d_type == DT_DIR && de->d_name[0] == 'm' && de->d_name[1] == 'c' && isdigit(de->d_name[2])) {
struct mc *m = callocz(1, sizeof(struct mc));
m->name = strdupz(de->d_name);
struct stat st;
snprintfz(name, FILENAME_MAX, "%s/%s/ce_count", dirname, de->d_name);
if(stat(name, &st) != -1)
m->ce_count_filename = strdupz(name);
snprintfz(name, FILENAME_MAX, "%s/%s/ue_count", dirname, de->d_name);
if(stat(name, &st) != -1)
m->ue_count_filename = strdupz(name);
if(!m->ce_count_filename && !m->ue_count_filename) {
freez(m->name);
freez(m);
}
else {
m->next = mc_root;
mc_root = m;
}
}
}
closedir(dir);
}
开发者ID:Peoplecantfly，项目名称:netdata，代码行数:40，代码来源:sys_devices_system_edac_mc.c
示例11: rrdsetvar_create_variables
static inline void rrdsetvar_create_variables(RRDSETVAR *rs) {
RRDSET *st = rs->rrdset;
RRDHOST *host = st->rrdhost;
RRDVAR_OPTIONS options = rs->options;
if(rs->options & RRDVAR_OPTION_ALLOCATED)
options &= ~ RRDVAR_OPTION_ALLOCATED;
// ------------------------------------------------------------------------
// free the old ones (if any)
rrdsetvar_free_variables(rs);
// ------------------------------------------------------------------------
// KEYS
char buffer[RRDVAR_MAX_LENGTH + 1];
snprintfz(buffer, RRDVAR_MAX_LENGTH, "%s.%s", st->id, rs->variable);
rs->key_fullid = strdupz(buffer);
snprintfz(buffer, RRDVAR_MAX_LENGTH, "%s.%s", st->name, rs->variable);
rs->key_fullname = strdupz(buffer);
// ------------------------------------------------------------------------
// CHART
rs->var_local = rrdvar_create_and_index("local", &st->rrdvar_root_index, rs->variable, rs->type, options, rs->value);
// ------------------------------------------------------------------------
// FAMILY
rs->var_family = rrdvar_create_and_index("family", &st->rrdfamily->rrdvar_root_index, rs->key_fullid, rs->type, options, rs->value);
rs->var_family_name = rrdvar_create_and_index("family", &st->rrdfamily->rrdvar_root_index, rs->key_fullname, rs->type, options, rs->value);
// ------------------------------------------------------------------------
// HOST
rs->var_host = rrdvar_create_and_index("host", &host->rrdvar_root_index, rs->key_fullid, rs->type, options, rs->value);
rs->var_host_name = rrdvar_create_and_index("host", &host->rrdvar_root_index, rs->key_fullname, rs->type, options, rs->value);
}
开发者ID:baidjay，项目名称:netdata，代码行数:37，代码来源:rrdsetvar.c
示例12: set_global_environment
void set_global_environment() {
{
char b[16];
snprintfz(b, 15, "%d", default_rrd_update_every);
setenv("NETDATA_UPDATE_EVERY", b, 1);
}
setenv("NETDATA_HOSTNAME" , netdata_configured_hostname, 1);
setenv("NETDATA_CONFIG_DIR" , verify_required_directory(netdata_configured_config_dir), 1);
setenv("NETDATA_PLUGINS_DIR", verify_required_directory(netdata_configured_plugins_dir), 1);
setenv("NETDATA_WEB_DIR" , verify_required_directory(netdata_configured_web_dir), 1);
setenv("NETDATA_CACHE_DIR" , verify_required_directory(netdata_configured_cache_dir), 1);
setenv("NETDATA_LIB_DIR" , verify_required_directory(netdata_configured_varlib_dir), 1);
setenv("NETDATA_LOG_DIR" , verify_required_directory(netdata_configured_log_dir), 1);
setenv("HOME" , verify_required_directory(netdata_configured_home_dir), 1);
setenv("NETDATA_HOST_PREFIX", netdata_configured_host_prefix, 1);
get_system_timezone();
// set the path we need
char path[1024 + 1], *p = getenv("PATH");
if(!p) p = "/bin:/usr/bin";
snprintfz(path, 1024, "%s:%s", p, "/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin");
setenv("PATH", config_get(CONFIG_SECTION_PLUGINS, "PATH environment variable", path), 1);
// python options
p = getenv("PYTHONPATH");
if(!p) p = "";
setenv("PYTHONPATH", config_get(CONFIG_SECTION_PLUGINS, "PYTHONPATH environment variable", p), 1);
// disable buffering for python plugins
setenv("PYTHONUNBUFFERED", "1", 1);
// switch to standard locale for plugins
setenv("LC_ALL", "C", 1);
}
开发者ID:Peoplecantfly，项目名称:netdata，代码行数:36，代码来源:main.c
示例13: rrdset_set_name
void rrdset_set_name(RRDSET *st, const char *name)
{
debug(D_RRD_CALLS, "rrdset_set_name() old: %s, new: %s", st->name, name);
if(st->name) rrdset_index_del_name(st);
char b[CONFIG_MAX_VALUE + 1];
char n[RRD_ID_LENGTH_MAX + 1];
snprintfz(n, RRD_ID_LENGTH_MAX, "%s.%s", st->type, name);
rrdset_strncpyz_name(b, n, CONFIG_MAX_VALUE);
st->name = config_get(st->id, "name", b);
st->hash_name = simple_hash(st->name);
rrdset_index_add_name(st);
}
开发者ID:4224657，项目名称:netdata，代码行数:16，代码来源:rrd.c
示例14: add_listen_socket
static inline int add_listen_socket(int fd, const char *ip, int port) {
if(listen_fds_count >= MAX_LISTEN_FDS) {
error("Too many listening sockets. Failed to add listening socket at ip '%s' port %d", ip, port);
close(fd);
return -1;
}
listen_fds[listen_fds_count] = fd;
char buffer[100 + 1];
snprintfz(buffer, 100, "[%s]:%d", ip, port);
listen_fds_names[listen_fds_count] = strdup(buffer);
listen_fds_count++;
return 0;
}
开发者ID:4224657，项目名称:netdata，代码行数:16，代码来源:web_server.c
示例15: cgroup_get_chart_id
void cgroup_get_chart_id(struct cgroup *cg) {
debug(D_CGROUP, "getting the name of cgroup '%s'", cg->id);
pid_t cgroup_pid;
char buffer[CGROUP_CHARTID_LINE_MAX + 1];
snprintfz(buffer, CGROUP_CHARTID_LINE_MAX, "exec %s '%s'",
config_get("plugin:cgroups", "script to get cgroup names", PLUGINS_DIR "/cgroup-name.sh"), cg->chart_id);
debug(D_CGROUP, "executing command '%s' for cgroup '%s'", buffer, cg->id);
FILE *fp = mypopen(buffer, &cgroup_pid);
if(!fp) {
error("CGROUP: Cannot popen(\"%s\", \"r\").", buffer);
return;
}
debug(D_CGROUP, "reading from command '%s' for cgroup '%s'", buffer, cg->id);
char *s = fgets(buffer, CGROUP_CHARTID_LINE_MAX, fp);
debug(D_CGROUP, "closing command for cgroup '%s'", cg->id);
mypclose(fp, cgroup_pid);
debug(D_CGROUP, "closed command for cgroup '%s'", cg->id);
if(s && *s && *s != '\n') {
debug(D_CGROUP, "cgroup '%s' should be renamed to '%s'", cg->id, s);
trim(s);
free(cg->chart_title);
cg->chart_title = strdup(s);
if(!cg->chart_title)
fatal("CGROUP: Cannot allocate memory for chart name of cgroup '%s' chart name: '%s'", cg->id, s);
netdata_fix_chart_name(cg->chart_title);
free(cg->chart_id);
cg->chart_id = strdup(s);
if(!cg->chart_id)
fatal("CGROUP: Cannot allocate memory for chart id of cgroup '%s' chart id: '%s'", cg->id, s);
netdata_fix_chart_id(cg->chart_id);
debug(D_CGROUP, "cgroup '%s' renamed to '%s' (title: '%s')", cg->id, cg->chart_id, cg->chart_title);
}
else debug(D_CGROUP, "cgroup '%s' is not to be renamed (will be shown as '%s')", cg->id, cg->chart_id);
}
开发者ID:AnnaChernova42，项目名称:netdata，代码行数:44，代码来源:sys_fs_cgroup.c
示例16: recursively_delete_dir
int recursively_delete_dir(const char *path, const char *reason) {
DIR *dir = opendir(path);
if(!dir) {
error("Cannot read %s directory to be deleted '%s'", reason?reason:"", path);
return -1;
}
int ret = 0;
struct dirent *de = NULL;
while((de = readdir(dir))) {
if(de->d_type == DT_DIR
&& (
(de->d_name[0] == '.' && de->d_name[1] == '\0')
|| (de->d_name[0] == '.' && de->d_name[1] == '.' && de->d_name[2] == '\0')
))
continue;
char fullpath[FILENAME_MAX + 1];
snprintfz(fullpath, FILENAME_MAX, "%s/%s", path, de->d_name);
if(de->d_type == DT_DIR) {
int r = recursively_delete_dir(fullpath, reason);
if(r > 0) ret += r;
continue;
}
info("Deleting %s file '%s'", reason?reason:"", fullpath);
if(unlikely(unlink(fullpath) == -1))
error("Cannot delete %s file '%s'", reason?reason:"", fullpath);
else
ret++;
}
info("Deleting empty directory '%s'", path);
if(unlikely(rmdir(path) == -1))
error("Cannot delete empty directory '%s'", path);
else
ret++;
closedir(dir);
return ret;
}
开发者ID:tvieira，项目名称:netdata，代码行数:43，代码来源:common.c
示例17: get_system_pid_max
pid_t get_system_pid_max(void) {
#ifdef __APPLE__
// As we currently do not know a solution to query pid_max from the os
// we use the number defined in bsd/sys/proc_internal.h in XNU sources
pid_max = 99999;
return pid_max;
#elif __FreeBSD__
int32_t tmp_pid_max;
if (unlikely(GETSYSCTL_BY_NAME("kern.pid_max", tmp_pid_max))) {
pid_max = 99999;
error("Assuming system's maximum pid is %d.", pid_max);
} else {
pid_max = tmp_pid_max;
}
return pid_max;
#else
static char read = 0;
if(unlikely(read)) return pid_max;
read = 1;
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s/proc/sys/kernel/pid_max", netdata_configured_host_prefix);
unsigned long long max = 0;
if(read_single_number_file(filename, &max) != 0) {
error("Cannot open file '%s'. Assuming system supports %d pids.", filename, pid_max);
return pid_max;
}
if(!max) {
error("Cannot parse file '%s'. Assuming system supports %d pids.", filename, pid_max);
return pid_max;
}
pid_max = (pid_t) max;
return pid_max;
#endif /* __APPLE__, __FreeBSD__ */
}
开发者ID:tvieira，项目名称:netdata，代码行数:42，代码来源:common.c
示例18: signal_handler
static void signal_handler(int signo) {
// find the entry in the list
int i;
for(i = 0; signals_waiting[i].action != NETDATA_SIGNAL_END_OF_LIST ; i++) {
if(unlikely(signals_waiting[i].signo == signo)) {
signals_waiting[i].count++;
if(signals_waiting[i].action == NETDATA_SIGNAL_FATAL) {
char buffer[200 + 1];
snprintfz(buffer, 200, "\nSIGNAL HANLDER: received: %s. Oops! This is bad!\n", signals_waiting[i].name);
if(write(STDERR_FILENO, buffer, strlen(buffer)) == -1) {
// nothing to do - we cannot write but there is no way to complaint about it
;
}
}
return;
}
}
}
开发者ID:Peoplecantfly，项目名称:netdata，代码行数:20，代码来源:signals.c
示例19: unit_test
int unit_test(long delay, long shift)
{
static int repeat = 0;
repeat++;
char name[101];
snprintfz(name, 100, "unittest-%d-%ld-%ld", repeat, delay, shift);
//debug_flags = 0xffffffff;
rrd_memory_mode = RRD_MEMORY_MODE_RAM;
rrd_update_every = 1;
int do_abs = 1;
int do_inc = 1;
int do_abst = 0;
int do_absi = 0;
RRDSET *st = rrdset_create("netdata", name, name, "netdata", NULL, "Unit Testing", "a value", 1, 1, RRDSET_TYPE_LINE);
st->debug = 1;
RRDDIM *rdabs = NULL;
RRDDIM *rdinc = NULL;
RRDDIM *rdabst = NULL;
RRDDIM *rdabsi = NULL;
if(do_abs) rdabs = rrddim_add(st, "absolute", "absolute", 1, 1, RRDDIM_ABSOLUTE);
if(do_inc) rdinc = rrddim_add(st, "incremental", "incremental", 1, 1, RRDDIM_INCREMENTAL);
if(do_abst) rdabst = rrddim_add(st, "percentage-of-absolute-row", "percentage-of-absolute-row", 1, 1, RRDDIM_PCENT_OVER_ROW_TOTAL);
if(do_absi) rdabsi = rrddim_add(st, "percentage-of-incremental-row", "percentage-of-incremental-row", 1, 1, RRDDIM_PCENT_OVER_DIFF_TOTAL);
long increment = 1000;
collected_number i = 0;
unsigned long c, dimensions = 0;
RRDDIM *rd;
for(rd = st->dimensions ; rd ; rd = rd->next) dimensions++;
for(c = 0; c < 20 ;c++) {
i += increment;
fprintf(stderr, "\n\nLOOP = %lu, DELAY = %ld, VALUE = " COLLECTED_NUMBER_FORMAT "\n", c, delay, i);
if(c) {
rrdset_next_usec_unfiltered(st, delay);
}
if(do_abs) rrddim_set(st, "absolute", i);
if(do_inc) rrddim_set(st, "incremental", i);
if(do_abst) rrddim_set(st, "percentage-of-absolute-row", i);
if(do_absi) rrddim_set(st, "percentage-of-incremental-row", i);
if(!c) {
now_realtime_timeval(&st->last_collected_time);
st->last_collected_time.tv_usec = shift;
}
// prevent it from deleting the dimensions
for(rd = st->dimensions ; rd ; rd = rd->next)
rd->last_collected_time.tv_sec = st->last_collected_time.tv_sec;
rrdset_done(st);
}
unsigned long oincrement = increment;
increment = increment * st->update_every * 1000000 / delay;
fprintf(stderr, "\n\nORIGINAL INCREMENT: %lu, INCREMENT %ld, DELAY %ld, SHIFT %ld\n", oincrement * 10, increment * 10, delay, shift);
int ret = 0;
storage_number sn;
calculated_number cn, v;
for(c = 0 ; c < st->counter ; c++) {
fprintf(stderr, "\nPOSITION: c = %lu, EXPECTED VALUE %lu\n", c, (oincrement + c * increment + increment * (1000000 - shift) / 1000000 )* 10);
for(rd = st->dimensions ; rd ; rd = rd->next) {
sn = rd->values[c];
cn = unpack_storage_number(sn);
fprintf(stderr, "\t %s " CALCULATED_NUMBER_FORMAT " (PACKED AS " STORAGE_NUMBER_FORMAT ") -> ", rd->id, cn, sn);
if(rd == rdabs) v =
( oincrement
// + (increment * (1000000 - shift) / 1000000)
+ (c + 1) * increment
);
else if(rd == rdinc) v = (c?(increment):(increment * (1000000 - shift) / 1000000));
else if(rd == rdabst) v = oincrement / dimensions / 10;
else if(rd == rdabsi) v = oincrement / dimensions / 10;
else v = 0;
if(v == cn) fprintf(stderr, "passed.\n");
else {
fprintf(stderr, "ERROR! (expected " CALCULATED_NUMBER_FORMAT ")\n", v);
ret = 1;
}
}
}
if(ret)
fprintf(stderr, "\n\nUNIT TEST(%ld, %ld) FAILED\n\n", delay, shift);
return ret;
}
开发者ID:acecommerce，项目名称:netdata，代码行数:100，代码来源:unit_test.c
示例20: do_proc_spl_kstat_zfs_arcstats
//.........这里部分代码省略.........
arl_expect(arl_base, "other_size", &arcstats.other_size);
arl_expect(arl_base, "anon_size", &arcstats.anon_size);
arl_expect(arl_base, "anon_evictable_data", &arcstats.anon_evictable_data);
arl_expect(arl_base, "anon_evictable_metadata", &arcstats.anon_evictable_metadata);
arl_expect(arl_base, "mru_size", &arcstats.mru_size);
arl_expect(arl_base, "mru_evictable_data", &arcstats.mru_evictable_data);
arl_expect(arl_base, "mru_evictable_metadata", &arcstats.mru_evictable_metadata);
arl_expect(arl_base, "mru_ghost_size", &arcstats.mru_ghost_size);
arl_expect(arl_base, "mru_ghost_evictable_data", &arcstats.mru_ghost_evictable_data);
arl_expect(arl_base, "mru_ghost_evictable_metadata", &arcstats.mru_ghost_evictable_metadata);
arl_expect(arl_base, "mfu_size", &arcstats.mfu_size);
arl_expect(arl_base, "mfu_evictable_data", &arcstats.mfu_evictable_data);
arl_expect(arl_base, "mfu_evictable_metadata", &arcstats.mfu_evictable_metadata);
arl_expect(arl_base, "mfu_ghost_size", &arcstats.mfu_ghost_size);
arl_expect(arl_base, "mfu_ghost_evictable_data", &arcstats.mfu_ghost_evictable_data);
arl_expect(arl_base, "mfu_ghost_evictable_metadata", &arcstats.mfu_ghost_evictable_metadata);
arl_expect(arl_base, "l2_hits", &arcstats.l2_hits);
arl_expect(arl_base, "l2_misses", &arcstats.l2_misses);
arl_expect(arl_base, "l2_feeds", &arcstats.l2_feeds);
arl_expect(arl_base, "l2_rw_clash", &arcstats.l2_rw_clash);
arl_expect(arl_base, "l2_read_bytes", &arcstats.l2_read_bytes);
arl_expect(arl_base, "l2_write_bytes", &arcstats.l2_write_bytes);
arl_expect(arl_base, "l2_writes_sent", &arcstats.l2_writes_sent);
arl_expect(arl_base, "l2_writes_done", &arcstats.l2_writes_done);
arl_expect(arl_base, "l2_writes_error", &arcstats.l2_writes_error);
arl_expect(arl_base, "l2_writes_lock_retry", &arcstats.l2_writes_lock_retry);
arl_expect(arl_base, "l2_evict_lock_retry", &arcstats.l2_evict_lock_retry);
arl_expect(arl_base, "l2_evict_reading", &arcstats.l2_evict_reading);
arl_expect(arl_base, "l2_evict_l1cached", &arcstats.l2_evict_l1cached);
arl_expect(arl_base, "l2_free_on_write", &arcstats.l2_free_on_write);
arl_expect(arl_base, "l2_cdata_free_on_write", &arcstats.l2_cdata_free_on_write);
arl_expect(arl_base, "l2_abort_lowmem", &arcstats.l2_abort_lowmem);
arl_expect(arl_base, "l2_cksum_bad", &arcstats.l2_cksum_bad);
arl_expect(arl_base, "l2_io_error", &arcstats.l2_io_error);
arl_expect(arl_base, "l2_size", &arcstats.l2_size);
arl_expect(arl_base, "l2_asize", &arcstats.l2_asize);
arl_expect(arl_base, "l2_hdr_size", &arcstats.l2_hdr_size);
arl_expect(arl_base, "l2_compress_successes", &arcstats.l2_compress_successes);
arl_expect(arl_base, "l2_compress_zeros", &arcstats.l2_compress_zeros);
arl_expect(arl_base, "l2_compress_failures", &arcstats.l2_compress_failures);
arl_expect(arl_base, "memory_throttle_count", &arcstats.memory_throttle_count);
arl_expect(arl_base, "duplicate_buffers", &arcstats.duplicate_buffers);
arl_expect(arl_base, "duplicate_buffers_size", &arcstats.duplicate_buffers_size);
arl_expect(arl_base, "duplicate_reads", &arcstats.duplicate_reads);
arl_expect(arl_base, "memory_direct_count", &arcstats.memory_direct_count);
arl_expect(arl_base, "memory_indirect_count", &arcstats.memory_indirect_count);
arl_expect(arl_base, "arc_no_grow", &arcstats.arc_no_grow);
arl_expect(arl_base, "arc_tempreserve", &arcstats.arc_tempreserve);
arl_expect(arl_base, "arc_loaned_bytes", &arcstats.arc_loaned_bytes);
arl_expect(arl_base, "arc_prune", &arcstats.arc_prune);
arl_expect(arl_base, "arc_meta_used", &arcstats.arc_meta_used);
arl_expect(arl_base, "arc_meta_limit", &arcstats.arc_meta_limit);
arl_expect(arl_base, "arc_meta_max", &arcstats.arc_meta_max);
arl_expect(arl_base, "arc_meta_min", &arcstats.arc_meta_min);
arl_expect(arl_base, "arc_need_free", &arcstats.arc_need_free);
arl_expect(arl_base, "arc_sys_free", &arcstats.arc_sys_free);
}
if(unlikely(!ff)) {
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, ZFS_PROC_ARCSTATS);
ff = procfile_open(config_get("plugin:proc:" ZFS_PROC_ARCSTATS, "filename to monitor", filename), " \t:", PROCFILE_FLAG_DEFAULT);
if(unlikely(!ff))
return 1;
}
ff = procfile_readall(ff);
if(unlikely(!ff))
return 0; // we return 0, so that we will retry to open it next time
size_t lines = procfile_lines(ff), l;
arl_begin(arl_base);
for(l = 0; l < lines ;l++) {
size_t words = procfile_linewords(ff, l);
if(unlikely(words < 3)) {
if(unlikely(words)) error("Cannot read " ZFS_PROC_ARCSTATS " line %zu. Expected 3 params, read %zu.", l, words);
continue;
}
const char *key = procfile_lineword(ff, l, 0);
const char *value = procfile_lineword(ff, l, 2);
if(unlikely(arcstats.l2exist == -1)) {
if(key[0] == 'l' && key[1] == '2' && key[2] == '_')
arcstats.l2exist = 1;
}
if(unlikely(arl_check(arl_base, key, value))) break;
}
if(unlikely(arcstats.l2exist == -1))
arcstats.l2exist = 0;
generate_charts_arcstats("proc", update_every);
generate_charts_arc_summary("proc", update_every);
return 0;
}
开发者ID:Peoplecantfly，项目名称:netdata，代码行数:101，代码来源:proc_spl_kstat_zfs.c
注：本文中的snprintfz函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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