bzr branch
http://suren.me/webbzr/alps/pcitool
330
by Suren A. Chilingaryan
Support for 64-bit registes |
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#define _POSIX_C_SOURCE 200112L
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#define _GNU_SOURCE
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#include <stdio.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <stdint.h> |
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#include <assert.h> |
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#include <ctype.h> |
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#include <time.h> |
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#include <sched.h> |
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#include <arpa/inet.h> |
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#include <sys/time.h> |
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#include "pci.h" |
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#include "tools.h" |
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#include "error.h" |
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int pcilib_add_timeout(struct timeval *tv, pcilib_timeout_t timeout) { |
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tv->tv_usec += timeout%1000000; |
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if (tv->tv_usec > 999999) { |
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tv->tv_usec -= 1000000; |
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tv->tv_sec += 1 + timeout/1000000; |
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} else { |
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tv->tv_sec += timeout/1000000; |
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}
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return 0; |
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}
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int pcilib_calc_deadline(struct timeval *tv, pcilib_timeout_t timeout) { |
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gettimeofday(tv, NULL); |
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pcilib_add_timeout(tv, timeout); |
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return 0; |
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}
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int pcilib_check_deadline(struct timeval *tve, pcilib_timeout_t timeout) { |
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int64_t res; |
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struct timeval tvs; |
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if (!tve->tv_sec) return 0; |
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gettimeofday(&tvs, NULL); |
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res = ((tve->tv_sec - tvs.tv_sec)*1000000 + (tve->tv_usec - tvs.tv_usec)); |
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// Hm... Some problems comparing signed and unsigned. So, sign check first
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if ((res < 0)||(res < timeout)) { |
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return 1; |
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}
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return 0; |
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}
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pcilib_timeout_t pcilib_calc_time_to_deadline(struct timeval *tve) { |
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int64_t res; |
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struct timeval tvs; |
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gettimeofday(&tvs, NULL); |
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res = ((tve->tv_sec - tvs.tv_sec)*1000000 + (tve->tv_usec - tvs.tv_usec)); |
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if (res < 0) return 0; |
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return res; |
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}
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int pcilib_sleep_until_deadline(struct timeval *tv) { |
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struct timespec wait; |
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pcilib_timeout_t duration; |
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duration = pcilib_calc_time_to_deadline(tv); |
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if (duration > 0) { |
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wait.tv_sec = duration / 1000000; |
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wait.tv_nsec = 1000 * (duration % 1000000); |
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nanosleep(&wait, NULL); |
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}
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return 0; |
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}
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pcilib_timeout_t pcilib_timediff(struct timeval *tvs, struct timeval *tve) { |
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return ((tve->tv_sec - tvs->tv_sec)*1000000 + (tve->tv_usec - tvs->tv_usec)); |
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}
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int pcilib_timecmp(struct timeval *tv1, struct timeval *tv2) { |
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if (tv1->tv_sec > tv2->tv_sec) return 1; |
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else if (tv1->tv_sec < tv2->tv_sec) return -1; |
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else if (tv1->tv_usec > tv2->tv_usec) return 1; |
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else if (tv1->tv_usec < tv2->tv_usec) return -1; |
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return 0; |
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}
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