i dont even know
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@@ -5,12 +5,12 @@
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#define NAME_MAXLEN 64
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typedef struct {
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pid_t pid; // PID пчелы
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int want; // желаемая порция; 0 => STOP-маркер
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char replyq[NAME_MAXLEN]; // имя очереди для ответов ("/bee_<pid>")
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pid_t pid;
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int want;
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char replyq[NAME_MAXLEN];
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} req_msg_t;
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typedef struct {
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int granted; // выдано меда; 0 => стоп
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int remain; // остаток мёда
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int granted;
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int remain;
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} rep_msg_t;
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@@ -9,7 +9,6 @@
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#include <string.h>
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#include <sys/stat.h>
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#include <time.h>
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#include <unistd.h>
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#include "common.h"
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@@ -73,7 +72,8 @@ int main(int argc, char **argv) {
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}
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mq_unlink(REQ_QUEUE);
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struct mq_attr attr; memset(&attr, 0, sizeof(attr));
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struct mq_attr attr;
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memset(&attr, 0, sizeof(attr));
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attr.mq_maxmsg = 10; // ваш системный максимум = 10
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attr.mq_msgsize = sizeof(req_msg_t);
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@@ -109,9 +109,14 @@ int main(int argc, char **argv) {
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int sleep_ms = (int) ((next_eat_ns - now_ns) / 1000000LL);
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if (sleep_ms < 0) sleep_ms = 0;
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struct timespec deadline = { .tv_sec = now.tv_sec + sleep_ms/1000,
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.tv_nsec = now.tv_nsec + (sleep_ms%1000)*1000000L };
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if (deadline.tv_nsec >= 1000000000L) { deadline.tv_sec++; deadline.tv_nsec -= 1000000000L; }
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struct timespec deadline = {
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.tv_sec = now.tv_sec + sleep_ms / 1000,
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.tv_nsec = now.tv_nsec + (sleep_ms % 1000) * 1000000L
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};
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if (deadline.tv_nsec >= 1000000000L) {
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deadline.tv_sec++;
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deadline.tv_nsec -= 1000000000L;
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}
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ssize_t rd = mq_timedreceive(qreq, (char *) &req, sizeof(req), NULL, &deadline);
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if (rd >= 0) {
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@@ -25,24 +25,34 @@ int main(int argc, char **argv) {
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return 2;
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}
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int portion = atoi(argv[1]);
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if (portion <= 0) { fprintf(stderr, "portion must be >0\n"); return 2; }
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if (portion <= 0) {
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fprintf(stderr, "portion must be >0\n");
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return 2;
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}
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pid_t me = getpid();
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char replyq[NAME_MAXLEN];
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snprintf(replyq, sizeof(replyq), "/bee_%d", (int) me);
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mq_unlink(replyq);
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struct mq_attr attr; memset(&attr, 0, sizeof(attr));
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struct mq_attr attr;
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memset(&attr, 0, sizeof(attr));
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attr.mq_maxmsg = 10; // также укладываемся в лимит
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attr.mq_msgsize = sizeof(rep_msg_t);
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mqd_t qrep = mq_open(replyq, O_CREAT | O_RDONLY, 0666, &attr);
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if (qrep == (mqd_t)-1) { perror("mq_open reply"); return 1; }
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if (qrep == (mqd_t) -1) {
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perror("mq_open reply");
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return 1;
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}
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mqd_t qreq = (mqd_t) -1;
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for (int i = 0; i < 50; i++) {
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qreq = mq_open(REQ_QUEUE, O_WRONLY);
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if (qreq != (mqd_t) -1) break;
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if (errno != ENOENT) { perror("mq_open req"); break; }
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if (errno != ENOENT) {
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perror("mq_open req");
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break;
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}
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msleep(100);
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}
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if (qreq == (mqd_t) -1) {
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@@ -58,7 +68,8 @@ int main(int argc, char **argv) {
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int ms = 100 + (rand_r(&seed) % 600);
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msleep(ms);
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req_msg_t req; memset(&req, 0, sizeof(req));
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req_msg_t req;
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memset(&req, 0, sizeof(req));
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req.pid = me;
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req.want = portion;
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strncpy(req.replyq, replyq, sizeof(req.replyq) - 1);
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