Ashley Mills / tinydtls

Version 0.5.0 of tinydtls

Dependents:   tinydtls_test_cellular tinydtls_test_ethernet tiny-dtls

dtls_time.c@1:598a56fe116e, 2014-02-12 (annotated)

Committer:
ashleymills
Date:
Wed Feb 12 09:30:16 2014 +0000
Revision:
1:598a56fe116e
Parent:
0:ff9ebe0cf0e9 
Explicitly removed something instead of relying on MACRO to disable it. Mbed can't use it.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ashleymills 0:ff9ebe0cf0e9 1 /* dtls -- a very basic DTLS implementation
ashleymills 0:ff9ebe0cf0e9 2 *
ashleymills 0:ff9ebe0cf0e9 3 * Copyright (C) 2011--2013 Olaf Bergmann <bergmann@tzi.org>
ashleymills 0:ff9ebe0cf0e9 4 *
ashleymills 0:ff9ebe0cf0e9 5 * Permission is hereby granted, free of charge, to any person
ashleymills 0:ff9ebe0cf0e9 6 * obtaining a copy of this software and associated documentation
ashleymills 0:ff9ebe0cf0e9 7 * files (the "Software"), to deal in the Software without
ashleymills 0:ff9ebe0cf0e9 8 * restriction, including without limitation the rights to use, copy,
ashleymills 0:ff9ebe0cf0e9 9 * modify, merge, publish, distribute, sublicense, and/or sell copies
ashleymills 0:ff9ebe0cf0e9 10 * of the Software, and to permit persons to whom the Software is
ashleymills 0:ff9ebe0cf0e9 11 * furnished to do so, subject to the following conditions:
ashleymills 0:ff9ebe0cf0e9 12 *
ashleymills 0:ff9ebe0cf0e9 13 * The above copyright notice and this permission notice shall be
ashleymills 0:ff9ebe0cf0e9 14 * included in all copies or substantial portions of the Software.
ashleymills 0:ff9ebe0cf0e9 15 *
ashleymills 0:ff9ebe0cf0e9 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
ashleymills 0:ff9ebe0cf0e9 17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
ashleymills 0:ff9ebe0cf0e9 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
ashleymills 0:ff9ebe0cf0e9 19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
ashleymills 0:ff9ebe0cf0e9 20 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ashleymills 0:ff9ebe0cf0e9 21 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
ashleymills 0:ff9ebe0cf0e9 22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
ashleymills 0:ff9ebe0cf0e9 23 * SOFTWARE.
ashleymills 0:ff9ebe0cf0e9 24 */
ashleymills 0:ff9ebe0cf0e9 25
ashleymills 0:ff9ebe0cf0e9 26 /**
ashleymills 0:ff9ebe0cf0e9 27 * @file dtls_time.c
ashleymills 0:ff9ebe0cf0e9 28 * @brief Clock Handling
ashleymills 0:ff9ebe0cf0e9 29 */
ashleymills 0:ff9ebe0cf0e9 30
ashleymills 0:ff9ebe0cf0e9 31 #include "dtls_time.h"
ashleymills 0:ff9ebe0cf0e9 32
ashleymills 0:ff9ebe0cf0e9 33
ashleymills 0:ff9ebe0cf0e9 34 #ifdef MBED
ashleymills 0:ff9ebe0cf0e9 35 #include "bsd_socket.h"
ashleymills 0:ff9ebe0cf0e9 36 /**
ashleymills 0:ff9ebe0cf0e9 37 * gettimeofday() not in mbed
ashleymills 0:ff9ebe0cf0e9 38 */
ashleymills 0:ff9ebe0cf0e9 39 void gettimeofday(struct timeval* t, void* timezone)
ashleymills 0:ff9ebe0cf0e9 40 {
ashleymills 0:ff9ebe0cf0e9 41 t->tv_sec = time(NULL);
ashleymills 0:ff9ebe0cf0e9 42 t->tv_usec = 0; /* 1sec precision only */
ashleymills 0:ff9ebe0cf0e9 43
ashleymills 0:ff9ebe0cf0e9 44 }
ashleymills 0:ff9ebe0cf0e9 45
ashleymills 0:ff9ebe0cf0e9 46 #endif
ashleymills 0:ff9ebe0cf0e9 47
ashleymills 0:ff9ebe0cf0e9 48 #ifdef WITH_CONTIKI
ashleymills 0:ff9ebe0cf0e9 49 clock_time_t dtls_clock_offset;
ashleymills 0:ff9ebe0cf0e9 50
ashleymills 0:ff9ebe0cf0e9 51 void
ashleymills 0:ff9ebe0cf0e9 52 dtls_clock_init(void) {
ashleymills 0:ff9ebe0cf0e9 53 clock_init();
ashleymills 0:ff9ebe0cf0e9 54 dtls_clock_offset = clock_time();
ashleymills 0:ff9ebe0cf0e9 55 }
ashleymills 0:ff9ebe0cf0e9 56
ashleymills 0:ff9ebe0cf0e9 57 void
ashleymills 0:ff9ebe0cf0e9 58 dtls_ticks(dtls_tick_t *t) {
ashleymills 0:ff9ebe0cf0e9 59 *t = clock_time();
ashleymills 0:ff9ebe0cf0e9 60 }
ashleymills 0:ff9ebe0cf0e9 61
ashleymills 0:ff9ebe0cf0e9 62 #else /* WITH_CONTIKI */
ashleymills 0:ff9ebe0cf0e9 63
ashleymills 0:ff9ebe0cf0e9 64 time_t dtls_clock_offset;
ashleymills 0:ff9ebe0cf0e9 65
ashleymills 0:ff9ebe0cf0e9 66 void
ashleymills 0:ff9ebe0cf0e9 67 dtls_clock_init(void) {
ashleymills 0:ff9ebe0cf0e9 68 #ifdef HAVE_TIME_H
ashleymills 0:ff9ebe0cf0e9 69 dtls_clock_offset = time(NULL);
ashleymills 0:ff9ebe0cf0e9 70 #else
ashleymills 0:ff9ebe0cf0e9 71 # ifdef __GNUC__
ashleymills 0:ff9ebe0cf0e9 72 /* Issue a warning when using gcc. Other prepropressors do
ashleymills 0:ff9ebe0cf0e9 73 * not seem to have a similar feature. */
ashleymills 0:ff9ebe0cf0e9 74 # warning "cannot initialize clock"
ashleymills 0:ff9ebe0cf0e9 75 # endif
ashleymills 0:ff9ebe0cf0e9 76 dtls_clock_offset = 0;
ashleymills 0:ff9ebe0cf0e9 77 #endif
ashleymills 0:ff9ebe0cf0e9 78 }
ashleymills 0:ff9ebe0cf0e9 79
ashleymills 0:ff9ebe0cf0e9 80
ashleymills 0:ff9ebe0cf0e9 81
ashleymills 0:ff9ebe0cf0e9 82 void dtls_ticks(dtls_tick_t *t) {
ashleymills 0:ff9ebe0cf0e9 83 #ifdef HAVE_SYS_TIME_H
ashleymills 0:ff9ebe0cf0e9 84 struct timeval tv;
ashleymills 0:ff9ebe0cf0e9 85 gettimeofday(&tv, NULL);
ashleymills 0:ff9ebe0cf0e9 86 *t = (tv.tv_sec - dtls_clock_offset) * DTLS_TICKS_PER_SECOND
ashleymills 0:ff9ebe0cf0e9 87 + (tv.tv_usec * DTLS_TICKS_PER_SECOND / 1000000);
ashleymills 0:ff9ebe0cf0e9 88 #else
ashleymills 0:ff9ebe0cf0e9 89 #error "clock not implemented"
ashleymills 0:ff9ebe0cf0e9 90 #endif
ashleymills 0:ff9ebe0cf0e9 91 }
ashleymills 0:ff9ebe0cf0e9 92
ashleymills 0:ff9ebe0cf0e9 93 #endif /* WITH_CONTIKI */
ashleymills 0:ff9ebe0cf0e9 94
ashleymills 0:ff9ebe0cf0e9 95