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libshell: update shell_ping()

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make it faster
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Егор
2026-03-08 18:40:07 +05:00
parent 18f50b5786
commit b2e4b02806
1 changed files with 16 additions and 4 deletions
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20
programs/develop/ktcc/trunk/lib/libshell/shell_ping.c
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@@ -1,12 +1,24 @@
#include <shell_api.h>
#include <sys/ksys.h>
#include <sys/ksys.h>
#define SHELL_PING_TIMEOUT 10 // 0.1 sec
#define SHELL_PING_MIN_DELAY 1
int shell_ping()
{
*__shell_shm = SHELL_PING;
_ksys_thread_yield();
_ksys_delay(40);
_ksys_thread_yield(); // hope shell is fast enough
return *__shell_shm == SHELL_OK;
}
size_t i = 0;
while (*__shell_shm != SHELL_OK){
if (i > (SHELL_PING_TIMEOUT / SHELL_PING_MIN_DELAY)) {
return 0;
}
i++;
_ksys_delay(SHELL_PING_MIN_DELAY);
}
return 1;
}