要打印 typedef enum Process_state 中的状态值，你需要使用一个循环或条件语句来判断当前状态并打印出对应的字符串表示。首先，您可以将每个状态与一个字符串关联，以便于打印。以下是一个示例代码，展示了如何定义和打印这些枚举值：
#include <stdio.h>
typedef enum Process_state {
/* normal state of process */
PROCESS_STATE_NONE = 1 << 0,
PROCESS_STATE_INIT = 1 << 1,
PROCESS_STATE_RUNNING = 1 << 2,
PROCESS_STATE_IDLE = 1 << 3,
PROCESS_STATE_SUSPEND = 1 << 4,
PROCESS_STATE_DEAD = 1 << 5,
PROCESS_STATE_EXIT = 1 << 6,
PROCESS_STATE_RESTART_FAILED = 1 << 7,
PROCESS_STATE_FAULT = 1 << 8, /* daemon detects process restart failed */
/* error level state of process, E0 to E5 */
PROCESS_STATE_E0 = (1 << (9 + 0)), // Placeholder for ERROR_LEVEL_NULL
PROCESS_STATE_E1 = (1 << (9 + 1)), // Placeholder for ERROR_LEVEL_1
PROCESS_STATE_E2 = (1 << (9 + 2)), // Placeholder for ERROR_LEVEL_2
PROCESS_STATE_E3 = (1 << (9 + 3)), // Placeholder for ERROR_LEVEL_3
PROCESS_STATE_E4 = (1 << (9 + 4)), // Placeholder for ERROR_LEVEL_4
PROCESS_STATE_E5 = (1 << (9 + 5)), // Placeholder for ERROR_LEVEL_5
} process_state_t;
const char* get_process_state_string(process_state_t state) {
switch(state) {
case PROCESS_STATE_NONE: return "PROCESS_STATE_NONE";
case PROCESS_STATE_INIT: return "PROCESS_STATE_INIT";
case PROCESS_STATE_RUNNING: return "PROCESS_STATE_RUNNING";
case PROCESS_STATE_IDLE: return "PROCESS_STATE_IDLE";
case PROCESS_STATE_SUSPEND: return "PROCESS_STATE_SUSPEND";
case PROCESS_STATE_DEAD: return "PROCESS_STATE_DEAD";
case PROCESS_STATE_EXIT: return "PROCESS_STATE_EXIT";
case PROCESS_STATE_RESTART_FAILED: return "PROCESS_STATE_RESTART_FAILED";
case PROCESS_STATE_FAULT: return "PROCESS_State_FAULT";
// Add additional cases as needed.
default: return "UNKNOWN STATE";
}
}
void print_process_states() {
for(int i=0; i <= PROCESS_State_FAULT; ++i) {
printf("State %d : %s\n", i, get_process_state_string(i));
}
}
int main() {
print_process_states();
return 0;
}
这段代码中，我们定义了一个函数 get_process_state_string 来返回对应状态的字符串表示。在 print_process_states 函数中，我们遍历可能的状态并打印它们的值。
请注意，为了正确处理错误级别的状态，您需要确保您已经有相应的常量定义（如 ERROR_LEVEL_NULL, ERR_RECOVER_NONE, 等），以及处理那些复杂位移操作。如果你有特定逻辑，比如只想打印某一部分状态，也可以调整循环范围或条件。
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