244 lines
4.5 KiB
C
244 lines
4.5 KiB
C
#include "server.h"
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void send_char(void)
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{
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if (g_server.count_bits == 7)
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{
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ft_putchar(g_server.character);
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g_server.count_bits = 0;
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g_server.character = 0;
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}
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}
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void sig_handler_1(int sig_num, siginfo_t *info, void *context)
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{
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(void)sig_num;
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(void)context;
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g_server.character ^= 1 << (6 - g_server.count_bits);
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g_server.count_bits++;
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send_char();
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kill(info->si_pid, SIGUSR1);
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}
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void sig_handler_2(int sig_num, siginfo_t *info, void *context)
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{
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(void)sig_num;
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(void)context;
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g_server.count_bits++;
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send_char();
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kill(info->si_pid, SIGUSR1);
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}
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void init_message(void)
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{
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g_server.count_bits = 0;
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g_server.character = 0;
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}
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int main(void)
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{
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struct sigaction act_1;
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struct sigaction act_2;
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act_1.sa_flags = SA_SIGINFO;
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act_1.sa_sigaction = sig_handler_1;
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act_2.sa_flags = SA_SIGINFO;
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act_2.sa_sigaction = sig_handler_2;
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sigaction(SIGUSR1, &act_1, NULL);
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sigaction(SIGUSR2, &act_2, NULL);
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ft_putnbrendl((int)getpid());
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init_message();
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while (1)
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;
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return (0);
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}
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/*
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** # # # # # # # # # # # # # # # # # # # #
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** INSTRUCTIONS
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**
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** allowed functions :
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** - write
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** - signal
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** - sigemptyset
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** - sigaddset
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** - sigaction
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** - kill
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** - getpid
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** - malloc
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** - free
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** - pause
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** - sleep
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** - usleep
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** - exit
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**
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** you can only use two signals :
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** - SIGUSR1
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** - SIGUSR2
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**
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**
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** # # # # # # # # # # # # # # # # # # # #
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** UNITS PREFIX
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**
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** times in seconds, deci, centi, milli, micros and nano :
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**
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** c m m
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** d e i i n
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** e n l c a
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** c t l r n
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** i i i o o
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**
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** 0 . 0 0 1 0 0
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**
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**
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** # # # # # # # # # # # # # # # # # # # #
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** CODE TO CALCULATE TIME IN MICROSECONDS
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**
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** found here : https://stackoverflow.com/a/5833240/9497573
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**
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** #include <stdint.h>
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** #include <sys/time.h>
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** uint64_t micros() {
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** struct timeval tv;
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** gettimeofday(&tv,NULL);
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** return tv.tv_sec*(uint64_t)1000000+tv.tv_usec;
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** }
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** uint64_t t1;
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** uint64_t t2;
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**
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**
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** # # # # # # # # # # # # # # # # # # # #
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** BINARY NUMBERS
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**
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** 1 000 0
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** 2 001 1 2
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** 3 002 10
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** 4 003 11 2
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** 5 004 100
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** 6 005 101
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** 7 006 110
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** 8 007 111 4
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** 9 008 1000
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** 10 009 1001
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** 11 010 1010
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** 12 011 1011
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** 13 012 1100
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** 14 013 1101
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** 15 014 1110
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** 16 015 1111 8
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** 17 016 10000
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** 18 017 10001
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** 19 018 10010
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** 20 019 10011
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** 21 020 10100
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** 22 021 10101
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** 23 022 10110
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** 24 023 10111
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** 25 024 11000
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** 26 025 11001
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** 27 026 11010
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** 28 027 11011
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** 29 028 11100
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** 30 029 11101
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** 31 030 11110
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** 32 031 11111 16
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** 33 032 100000
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** 34 033 100001
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** 35 034 100010
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** 36 035 100011
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** 37 036 100100
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** 38 037 100101
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** 39 038 100110
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** 40 039 100111
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** 41 040 101000
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** 42 041 101001
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** 43 042 101010
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** 44 043 101011
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** 45 044 101100
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** 46 045 101101
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** 47 046 101110
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** 48 047 101111
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** 49 048 110000
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** 50 049 110001
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** 51 050 110010
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** 52 051 110011
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** 53 052 110100
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** 54 053 110101
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** 55 054 110110
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** 56 055 110111
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** 57 056 111000
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** 58 057 111001
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** 59 058 111010
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** 60 059 111011
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** 61 060 111100
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** 62 061 111101
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** 63 062 111110
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** 64 063 111111 32
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** 65 064 1000000
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** 66 065 1000001
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** 67 066 1000010
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** 68 067 1000011
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** 69 068 1000100
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** 70 069 1000101
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** 71 070 1000110
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** 72 071 1000111
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** 73 072 1001000
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** 74 073 1001001
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** 75 074 1001010
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** 76 075 1001011
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** 77 076 1001100
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** 78 077 1001101
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** 79 078 1001110
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** 80 079 1001111
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** 81 080 1010000
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** 82 081 1010001
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** 83 082 1010010
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** 84 083 1010011
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** 85 084 1010100
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** 86 085 1010101
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** 87 086 1010110
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** 88 087 1010111
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** 89 088 1011000
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** 90 089 1011001
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** 91 090 1011010
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** 92 091 1011011
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** 93 092 1011100
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** 94 093 1011101
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** 95 094 1011110
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** 96 095 1011111
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** 97 096 1100000
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** 98 097 1100001
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** 99 098 1100010
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** 100 099 1100011
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** 101 100 1100100
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** 102 101 1100101
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** 103 102 1100110
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** 104 103 1100111
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** 105 104 1101000
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** 106 105 1101001
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** 107 106 1101010
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** 108 107 1101011
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** 109 108 1101100
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** 110 109 1101101
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** 111 110 1101110
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** 112 111 1101111
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** 113 112 1110000
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** 114 113 1110001
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** 115 114 1110010
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** 116 115 1110011
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** 117 116 1110100
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** 118 117 1110101
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** 119 118 1110110
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** 120 119 1110111
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** 121 120 1111000
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** 122 121 1111001
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** 123 122 1111010
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** 124 123 1111011
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** 125 124 1111100
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** 126 125 1111101
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** 127 126 1111110
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** 128 127 1111111 64
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** # # # # # # # # # # # # # # # # # # # #
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**
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*/
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