mirror of
https://github.com/vale981/ray
synced 2025-03-06 10:31:39 -05:00
e21e9f68df
* API revision * update * make status a bitmap * update api * tests working * new task log APIs * update APIs * write binary structures to redis * update tests * fix clang-format * Fix formatting.
36 lines
884 B
C
36 lines
884 B
C
#include "common.h"
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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const unique_id NIL_ID = {{255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255}};
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unique_id globally_unique_id(void) {
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/* Use /dev/urandom for "real" randomness. */
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int fd;
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if ((fd = open("/dev/urandom", O_RDONLY)) == -1) {
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LOG_ERR("Could not generate random number");
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}
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unique_id result;
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read(fd, &result.id[0], UNIQUE_ID_SIZE);
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close(fd);
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return result;
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}
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char *sha1_to_hex(const unsigned char *sha1, char *buffer) {
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static const char hex[] = "0123456789abcdef";
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char *buf = buffer;
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for (int i = 0; i < UNIQUE_ID_SIZE; i++) {
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unsigned int val = *sha1++;
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*buf++ = hex[val >> 4];
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*buf++ = hex[val & 0xf];
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}
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*buf = '\0';
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return buffer;
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}
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