libnl 1.1
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Data Structures | |
struct | nl_dump_params |
Dumping parameters. More... | |
Modules | |
Abstract Address | |
Abstract Data | |
Enumerations | |
enum | nl_dump_type { NL_DUMP_BRIEF, NL_DUMP_FULL, NL_DUMP_STATS, NL_DUMP_XML, NL_DUMP_ENV, NL_DUMP_EVENTS, __NL_DUMP_MAX } |
Dumping types (dp_type) More... | |
Variables | |
int | nl_debug = 0 |
Debug level. | |
struct nl_dump_params | nl_debug_dp |
Error Code Helpers | |
int | nl_get_errno (void) |
char * | nl_geterror (void) |
Return error message for an error code. | |
void | nl_perror (const char *s) |
Print a libnl error message. | |
Unit Pretty-Printing | |
double | nl_cancel_down_bytes (unsigned long long l, char **unit) |
Cancel down a byte counter. | |
double | nl_cancel_down_bits (unsigned long long l, char **unit) |
Cancel down a bit counter. | |
double | nl_cancel_down_us (uint32_t l, char **unit) |
Cancel down a micro second value. | |
Generic Unit Translations | |
long | nl_size2int (const char *str) |
Convert a character string to a size. | |
long | nl_prob2int (const char *str) |
Convert a character string to a probability. | |
Time Translations | |
int | nl_get_hz (void) |
Return the value of HZ. | |
uint32_t | nl_us2ticks (uint32_t us) |
Convert micro seconds to ticks. | |
uint32_t | nl_ticks2us (uint32_t ticks) |
Convert ticks to micro seconds. | |
long | nl_time2int (const char *str) |
char * | nl_msec2str (uint64_t msec, char *buf, size_t len) |
Convert milliseconds to a character string. | |
Link Layer Protocol Translations | |
char * | nl_llproto2str (int llproto, char *buf, size_t len) |
int | nl_str2llproto (const char *name) |
Ethernet Protocol Translations | |
char * | nl_ether_proto2str (int eproto, char *buf, size_t len) |
int | nl_str2ether_proto (const char *name) |
IP Protocol Translations | |
char * | nl_ip_proto2str (int proto, char *buf, size_t len) |
int | nl_str2ip_proto (const char *name) |
Dumping Helpers | |
void | nl_new_line (struct nl_dump_params *params, int line) |
Handle a new line while dumping. | |
void | nl_dump (struct nl_dump_params *params, const char *fmt,...) |
Dump a formatted character string. | |
Probability Constants | |
#define | NL_PROB_MIN 0x0 |
Lower probability limit. | |
#define | NL_PROB_MAX 0xffffffff |
Upper probability limit. |
enum nl_dump_type |
Definition at line 21 of file types.h.
{ NL_DUMP_BRIEF, /**< Dump object in a brief one-liner */ NL_DUMP_FULL, /**< Dump all attributes but no statistics */ NL_DUMP_STATS, /**< Dump all attributes including statistics */ NL_DUMP_XML, /**< Dump all attribtes in XML format */ NL_DUMP_ENV, /**< Dump all attribtues as env variables */ NL_DUMP_EVENTS, /**< Dump event */ __NL_DUMP_MAX, };
char* nl_geterror | ( | void | ) |
Definition at line 142 of file utils.c.
Referenced by nl_perror().
{ if (errbuf) return errbuf; if (nlerrno) return strerror(nlerrno); return "Sucess\n"; }
void nl_perror | ( | const char * | s | ) |
s | error message prefix |
Prints the error message of the call that failed last.
If s is not NULL and *s is not a null byte the argument string is printed, followed by a colon and a blank. Then the error message and a new-line.
Definition at line 163 of file utils.c.
References nl_geterror().
{ if (s && *s) fprintf(stderr, "%s: %s\n", s, nl_geterror()); else fprintf(stderr, "%s\n", nl_geterror()); }
double nl_cancel_down_bytes | ( | unsigned long long | l, |
char ** | unit | ||
) |
l | byte counter |
unit | destination unit pointer |
Cancels down a byte counter until it reaches a reasonable unit. The chosen unit is assigned to unit.
Definition at line 188 of file utils.c.
{ if (l >= 1099511627776LL) { *unit = "TiB"; return ((double) l) / 1099511627776LL; } else if (l >= 1073741824) { *unit = "GiB"; return ((double) l) / 1073741824; } else if (l >= 1048576) { *unit = "MiB"; return ((double) l) / 1048576; } else if (l >= 1024) { *unit = "KiB"; return ((double) l) / 1024; } else { *unit = "B"; return (double) l; } }
double nl_cancel_down_bits | ( | unsigned long long | l, |
char ** | unit | ||
) |
l | bit counter |
unit | destination unit pointer |
Cancels downa bit counter until it reaches a reasonable unit. The chosen unit is assigned to unit.
Definition at line 218 of file utils.c.
{ if (l >= 1099511627776ULL) { *unit = "Tbit"; return ((double) l) / 1099511627776ULL; } else if (l >= 1073741824) { *unit = "Gbit"; return ((double) l) / 1073741824; } else if (l >= 1048576) { *unit = "Mbit"; return ((double) l) / 1048576; } else if (l >= 1024) { *unit = "Kbit"; return ((double) l) / 1024; } else { *unit = "bit"; return (double) l; } }
double nl_cancel_down_us | ( | uint32_t | l, |
char ** | unit | ||
) |
l | micro seconds |
unit | destination unit pointer |
Cancels down a microsecond counter until it reaches a reasonable unit. The chosen unit is assigned to unit.
Definition at line 249 of file utils.c.
{ if (l >= 1000000) { *unit = "s"; return ((double) l) / 1000000; } else if (l >= 1000) { *unit = "ms"; return ((double) l) / 1000; } else { *unit = "us"; return (double) l; } }
long nl_size2int | ( | const char * | str | ) |
str | size encoded as character string |
Converts the specified size as character to the corresponding number of bytes.
Supported formats are:
Definition at line 283 of file utils.c.
{ char *p; long l = strtol(str, &p, 0); if (p == str) return -1; if (*p) { if (!strcasecmp(p, "kb") || !strcasecmp(p, "k")) l *= 1024; else if (!strcasecmp(p, "gb") || !strcasecmp(p, "g")) l *= 1024*1024*1024; else if (!strcasecmp(p, "gbit")) l *= 1024*1024*1024/8; else if (!strcasecmp(p, "mb") || !strcasecmp(p, "m")) l *= 1024*1024; else if (!strcasecmp(p, "mbit")) l *= 1024*1024/8; else if (!strcasecmp(p, "kbit")) l *= 1024/8; else if (!strcasecmp(p, "bit")) l /= 8; else if (strcasecmp(p, "b") != 0) return -1; } return l; }
long nl_prob2int | ( | const char * | str | ) |
str | probability encoded as character string |
Converts the specified probability as character to the corresponding probability number.
Supported formats are:
Definition at line 325 of file utils.c.
References NL_PROB_MAX.
{ char *p; double d = strtod(str, &p); if (p == str) return -1; if (d > 1.0) d /= 100.0f; if (d > 1.0f || d < 0.0f) return -1; if (*p && strcmp(p, "%") != 0) return -1; return rint(d * NL_PROB_MAX); }
uint32_t nl_us2ticks | ( | uint32_t | us | ) |
us | micro seconds |
Definition at line 429 of file utils.c.
Referenced by rtnl_netem_set_delay(), and rtnl_netem_set_jitter().
{
return us * ticks_per_usec;
}
uint32_t nl_ticks2us | ( | uint32_t | ticks | ) |
ticks | number of ticks |
Definition at line 440 of file utils.c.
Referenced by rtnl_netem_get_delay(), and rtnl_netem_get_jitter().
{
return ticks / ticks_per_usec;
}
char* nl_msec2str | ( | uint64_t | msec, |
char * | buf, | ||
size_t | len | ||
) |
msec | number of milliseconds |
buf | destination buffer |
len | buffer length |
Converts milliseconds to a character string split up in days, hours, minutes, seconds, and milliseconds and stores it in the specified destination buffer.
Definition at line 478 of file utils.c.
{ int i, split[5]; char *units[] = {"d", "h", "m", "s", "msec"}; #define _SPLIT(idx, unit) if ((split[idx] = msec / unit) > 0) msec %= unit _SPLIT(0, 86400000); /* days */ _SPLIT(1, 3600000); /* hours */ _SPLIT(2, 60000); /* minutes */ _SPLIT(3, 1000); /* seconds */ #undef _SPLIT split[4] = msec; memset(buf, 0, len); for (i = 0; i < ARRAY_SIZE(split); i++) { if (split[i] > 0) { char t[64]; snprintf(t, sizeof(t), "%s%d%s", strlen(buf) ? " " : "", split[i], units[i]); strncat(buf, t, len - strlen(buf) - 1); } } return buf; }
void nl_new_line | ( | struct nl_dump_params * | params, |
int | line | ||
) |
params | Dumping parameters |
line | Number of lines dumped already. |
This function must be called before dumping any onto a new line. It will ensure proper prefixing as specified by the dumping parameters.
Definition at line 725 of file utils.c.
References nl_dump_params::dp_buf, nl_dump_params::dp_buflen, nl_dump_params::dp_fd, nl_dump_params::dp_nl_cb, and nl_dump_params::dp_prefix.
void nl_dump | ( | struct nl_dump_params * | params, |
const char * | fmt, | ||
... | |||
) |
params | Dumping parameters |
fmt | printf style formatting string |
... | Arguments to formatting string |
Dumps a printf style formatting string to the output device as specified by the dumping parameters.
Definition at line 752 of file utils.c.
{ va_list args; va_start(args, fmt); __dp_dump(params, fmt, args); va_end(args); }
struct nl_dump_params nl_debug_dp |
{ .dp_type = NL_DUMP_FULL, }