62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
#include <sys/ksys.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <shell_api.h>
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char app_name[13];
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char __shell_shm_name[32];
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char *__shell_shm = NULL;
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enum __SHELL_INIT_STATE __shell_is_init = __SHELL_NOT_LOADED;
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int __shell_shm_init()
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{
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__shell_is_init = __SHELL_LOADING;
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ksys_thread_t proc_info;
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unsigned PID;
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_ksys_thread_info(&proc_info, -1);
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PID = proc_info.pid;
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strncpy(app_name, (&proc_info)->name, 12);
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itoa(PID, __shell_shm_name);
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strcat(__shell_shm_name, "-SHELL");
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return _ksys_shm_open(__shell_shm_name, KSYS_SHM_OPEN_ALWAYS | KSYS_SHM_WRITE, SHELL_SHM_MAX, &__shell_shm);
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}
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void __shell_init()
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{
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switch (__shell_is_init) {
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case __SHELL_NOT_LOADED:
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if (__shell_shm_init()) {
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debug_printf("%s: shell problems detected!\n", app_name);
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goto __shell_init_err;
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}
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if (!shell_ping()) {
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goto __shell_init_err;
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}
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__shell_is_init = __SHELL_INIT_OK; // The shell is being pinged, so it's working.
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break;
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case __SHELL_LOADING:
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while (__shell_is_init == __SHELL_LOADING) {
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_ksys_thread_yield();
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}
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case __SHELL_INIT_OK:
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if (!shell_ping()) {
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goto __shell_init_err;
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}
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break;
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default:
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break;
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}
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return;
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__shell_init_err:
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__shell_is_init = __SHELL_INIT_FAILED;
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shell_exit();
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return;
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}
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