Embedded src 0002 - JohnHau/mis GitHub Wiki
//file-rw.c============================================================= #include<stdio.h> #include<stdlib.h> #include<string.h> #include<sys/stat.h> #include<sys/types.h> #include<unistd.h> #include<fcntl.h>
#include<pthread.h>
int fd; pthread_t thread_A; pthread_t thread_B; pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
int counter = 100;
void sig_handler(int signo) {
if(signo == SIGINT)
{
close(fd);
printf("bye!\n");
exit(EXIT_FAILURE);
}
}
int32_t os_write_file(int fd,int offset,const void* data,uint32_t data_len) { pthread_mutex_lock(&mutex);
lseek(fd,0,SEEK_SET);
lseek(fd,offset,SEEK_CUR);
write(fd,(char*)data,data_len);
pthread_mutex_unlock(&mutex);
return 0;
}
void* write_A(void*arg) { int i = 0;
while(1)
{
printf("thread A\n");
sleep(1);
//pthread_mutex_lock(&mutex);
counter ++;
//int32_t os_write_file(int fd,int offset,const void* data,uint32_t data_len)
os_write_file(fd,1024 + 4*i,(const void*)&counter,4);
//pthread_mutex_unlock(&mutex);
i++;
printf("A counter is %d\n",counter);
}
}
void* write_B(void*arg) {
while(1)
{
printf("thread B\n");
sleep(2);
pthread_mutex_lock(&mutex);
counter ++;
pthread_mutex_unlock(&mutex);
printf("B counter is %d\n",counter);
}
}
int main(int argc, char* argv[]) { if(argc < 2) { printf("usage:%s file\n",argv[0]); exit(EXIT_FAILURE); }
if(signal(SIGINT,sig_handler) == SIG_ERR)
{
perror("signal failed\n");
exit(EXIT_FAILURE);
}
// pthread_mutex_init(&mutex,NULL);
fd = open(argv[1],O_RDWR);
if(fd < 0)
{
perror("open failed\n");
exit(EXIT_FAILURE);
}
pthread_create(&thread_A,NULL,write_A,NULL);
pthread_create(&thread_B,NULL,write_B,NULL);
pthread_join(thread_A,NULL);
pthread_join(thread_B,NULL);
//lseek(fd,100,SEEK_SET);
//char out_buffer[64] = "hello";
//write(fd,out_buffer,strlen(out_buffer));
char in_buffer[128] = {0};
read(fd,in_buffer,1);
printf("it is %02x",in_buffer[0]);
close(fd);
return 0;
}
//gbin.sh=========================================================
#!/bin/bash
i=0 #t=((1610241024)) t=$((1024*1024)) rm -rf bbbb.bin date while [ $i -lt $t ] do
echo -n -e '\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff' >> bbbb.bin
i=$((i+1))
#echo $i
done
date
echo done
//main.c=========================================================
#include<stdio.h> #include<stdlib.h> #include<stdint.h> #include<string.h> #include<fcntl.h> #include<pthread.h> #include<mqueue.h>
pthread_mutex_t mutex1 = PTHREAD_MUTEX_INITIALIZER;
int counter = 0;
void* tha(void* arg) {
mqd_t server;
struct mq_attr attr;
attr.mq_flags = 0;
attr.mq_maxmsg = 128;
attr.mq_msgsize = 1024;
attr.mq_curmsgs = 0;
printf("1111111111111\n");
if((server = mq_open("/tmq",O_RDONLY|O_CREAT,0660,&attr)) == -1)
{
perror("server:mq_open failed\n");
exit(EXIT_FAILURE);
}
printf("2222222222222\n");
char out_buffer[32]="hello\n";
mq_send(server,out_buffer,2,0);
printf("33333333333333\n");
while(1)
{
pthread_mutex_lock(&mutex1);
printf("tha counter is %d\n",counter);
if(counter == 10)
{
pthread_mutex_unlock(&mutex1);
//exit(0);
break;
}
else
{
counter++;
pthread_mutex_unlock(&mutex1);
}
}
return 0;
}
void* thb(void* arg) { while(1) { pthread_mutex_lock(&mutex1);
printf("thb counter is %d\n",counter);
if(counter == 10)
{
pthread_mutex_unlock(&mutex1);
//exit(0);
break;
}
else
{
counter++;
pthread_mutex_unlock(&mutex1);
}
}
return 0;
}
int main(int argc,char* argv[]) { pthread_t ta,tb;
pthread_create(&ta,NULL,tha,NULL);
// pthread_create(&tb,NULL,thb,NULL);
pthread_join(ta,NULL);
// pthread_join(tb,NULL);
return 0;
}
//main.cpp===============================================
#include #include<io.h> #include #include #include
int main(int argc,char* argv[]) { FILE* fp = NULL; fp = fopen("ta.log","w"); if(fp == NULL) { printf("fopen failed\n"); exit(EXIT_FAILURE); }
int n = 0;
n = filelength(fileno(fp),ftell(fp));
std::cout<<n<< std::endl;
fclose(fp);
return 0;
}
//mkcrc32.c===================================================== #include<stdio.h> #include<stdlib.h> #include<string.h> #include<sys/types.h> #include<sys/stat.h> #include<unistd.h> #include<fcntl.h> uint32_t crc_table[256] = { 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L, 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L, 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L, 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL, 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L, 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L, 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L, 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL, 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L, 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL, 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L, 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L, 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L, 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL, 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL, 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L, 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL, 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L, 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L, 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L, 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL, 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L, 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L, 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL, 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L, 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L, 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L, 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L, 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L, 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL, 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL, 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L, 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L, 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL, 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL, 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L, 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL, 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L, 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL, 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L, 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL, 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L, 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L, 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL, 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L, 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L, 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L, 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L, 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L, 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L, 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, 0x2d02ef8dL }; /*************************************************************** ** INPUT: pointer to the data; length of the data ** RETURN VALUE: 16 bit CRC of the calculated area. ** crc=x^16 + x^14 + x^1 + x^0, polynomial 0xa001 (CCITT) ****************************************************************/ uint32_t mkcrc32(uint32_t oldCRC, void *Data, uint32_t Len) { uint8_t *val = Data;
while ( Len-- )
oldCRC = (uint32_t)(crc_table[(int) ((*(val)++ )^ oldCRC) & 0xff] ^ (oldCRC >> 8));
return oldCRC;
}
uint32_t crc = 0; uint8_t buf[64] = {0x01,0x02,0x03,0x04};
int main(int argc,char* argv[]) {
crc = mkcrc32(0xFFFFFFFF, buf, 4);
printf("a crc is %08x\n",crc);
buf[0] = 0x04;
buf[1] = 0x03;
buf[2] = 0x02;
buf[3] = 0x01;
crc = mkcrc32(0xFFFFFFFF, buf, 4);
printf("b crc is %08x\n",crc);
buf[0] = 0xFF;
buf[1] = 0xFF;
buf[2] = 0xFF;
buf[3] = 0xFF;
crc = mkcrc32(0xFFFFFFFF, buf, 4);
printf("c crc is %08x\n",crc);
buf[0] = 0x00;
buf[1] = 0x00;
buf[2] = 0x00;
buf[3] = 0x00;
crc = mkcrc32(0xFFFFFFFF, buf, 4);
printf("d crc is %08x\n",crc);
return 0;
}
//pp.c======================================
#include<stdio.h> #include<stdlib.h> #include<stdint.h> #include<string.h> #include<fcntl.h> #include<pthread.h> #include<mqueue.h>
pthread_mutex_t mutex1 = PTHREAD_MUTEX_INITIALIZER;
int counter = 0;
void* ifp_read(void* arg) {
#if 0 mqd_t server; struct mq_attr attr;
attr.mq_flags = 0;
attr.mq_maxmsg = 128;
attr.mq_msgsize = 1024;
attr.mq_curmsgs = 0;
printf("1111111111111\n");
if((server = mq_open("/tmq",O_RDONLY|O_CREAT,0660,&attr)) == -1)
{
perror("server:mq_open failed\n");
exit(EXIT_FAILURE);
}
printf("2222222222222\n");
char out_buffer[32]="hello\n";
mq_send(server,out_buffer,2,0);
printf("33333333333333\n");
#endif
while(1)
{
pthread_mutex_lock(&mutex1);
printf("tha counter is %d\n",counter);
if(counter == 10)
{
pthread_mutex_unlock(&mutex1);
//exit(0);
break;
}
else
{
counter++;
pthread_mutex_unlock(&mutex1);
}
}
return 0;
}
void* ifp_write(void* arg) { while(1) { pthread_mutex_lock(&mutex1);
printf("thb counter is %d\n",counter);
if(counter == 10)
{
pthread_mutex_unlock(&mutex1);
//exit(0);
break;
}
else
{
counter++;
pthread_mutex_unlock(&mutex1);
}
}
return 0;
}
int main(int argc,char* argv[]) { pthread_t ifpr,ifpw;
pthread_create(&ppr,NULL,tha,NULL);
pthread_create(&ppw,NULL,thb,NULL);
pthread_join(ppr,NULL);
pthread_join(ppw,NULL);
return 0;
}
//test.py======================================================== #!/usr/bin/python
print("hhh")
//test.sh============================================================= #!/bin/bash
i=0
while [
//ts.awk========================================
#!/bin/awk -f
BEGIN{print"===="} { printf "%x\n",strtonum("0x"$1) + strtonum("0x"$2 ) } END{print"****"}