Revision 984
Function to free memory added, not sure how to test if its working.
| robot.c | ||
|---|---|---|
| 3 | 3 |
#include <signal.h> |
| 4 | 4 |
#include <unistd.h> |
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#include <stdlib.h> |
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#include <sys/shm.h> |
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#include <sys/ipc.h> |
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#include <robot_shared.h> |
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#include <string.h> |
|
| 6 | 10 |
|
| 7 | 11 |
volatile int i; |
| 8 | 12 |
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RobotShared* shared_state; |
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|
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void *tick(int sig) |
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{
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printf("robot process paused. suspending\n");
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| 12 | 18 |
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shared_state->motor1++; |
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|
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| 13 | 21 |
if(raise(SIGTSTP)<0) |
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printf("could not kill self!\n");
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| 15 | 23 |
|
| ... | ... | |
| 23 | 31 |
int ret; |
| 24 | 32 |
struct itimerval iv; |
| 25 | 33 |
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shared_state = shmat(atoi(envp[0]), NULL, 0); |
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if(shared_state < 0) |
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{
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printf("unable to get shared memory region\n");
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return 1; |
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} |
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|
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|
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printf("hello. I am a robot w/ env[0] %s\n", envp[0]);
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| 27 | 43 |
|
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iv.it_interval.tv_sec = 1; |
| ... | ... | |
| 42 | 58 |
while(1) |
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i++; |
| 44 | 60 |
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shmdt(shared_state); |
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| 45 | 62 |
return 0; |
| 46 | 63 |
} |
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