linux精确定时服务
作者 佚名技术
来源 Linux系统
浏览
发布时间 2012-04-18
| eek; }DATE_REC; typedef struct _entry { int flags; unsigned char bit_decl(minute, MINUTE_COUNT); unsigned char bit_decl(hour, HOUR_COUNT); unsigned char bit_decl(day_of_mon, DAYOFMON_COUNT); unsigned char bit_decl(mon_of_year, MONTH_COUNT); unsigned char bit_decl(day_of_week, DAYOFWEEK_COUNT); char command[MAX_BUF]; struct _entry *next; }ENTRY; #endif #include <stdio.h> #include <stdlib.h> #include <string.h> #include <stdbool.h> #include <sys/time.h> #include <time.h> //#include <sqlite3.h> #include "dbcron_comm.h" static ENTRY *head = NULL; static ENTRY *tail = NULL; int set_bit(unsigned char *bits, int low, int high, int number) { if (number < low || number > high) return -1; bit_set(bits, (number - low)); return 0; } int set_element(unsigned char *bits, ELEMENT element, int low, int high) { int i; int num1; int num2; int num3; bit_nclear(bits, 0, (high - low 1)); if (E_EVERY == element.flag) { num1 = low; num2 = high; } else if (E_NORMAL == element.flag) { num1 = element.low; set_bit(bits, low, high, num1); return 0; } else if (E_AREA == element.flag) { num1 = element.low; num2 = element.high; } num3 = element.step; if (num3 <= 0) return -1; for (i = num1; i <= num2; i = num3) { set_bit(bits, low, high, i); } return 0; } int load_entry(ENTRY *pEntry, DATE_REC *pDate) { if (E_EVERY == pDate->minute.flag) pEntry->flags |= MINUTE_EVERY; set_element(pEntry->minute, pDate->minute, FIRST_MINUTE, LAST_MINUTE); if (E_EVERY == pDate->hour.flag) pEntry->flags |= HOUR_EVERY; set_element(pEntry->hour, pDate->hour, FIRST_HOUR, LAST_HOUR); if (E_EVERY == pDate->day_of_mon.flag) pEntry->flags |= DAY_MON_EVERY; set_element(pEntry->day_of_mon, pDate->day_of_mon, FIRST_DAYOFMON, LAST_DAYOFMON); if (E_EVERY == pDate->mon_of_year.flag) pEntry->flags |= MON_YEAR_EVERY; set_element(pEntry->mon_of_year, pDate->mon_of_year, FIRST_MONTH, LAST_MONTH); if (E_EVERY == pDate->day_of_week.flag) pEntry->flags |= DAY_WEEK_EVERY; set_element(pEntry->day_of_week, pDate->day_of_week, FIRST_DAYOFWEEK, LAST_DAYOFWEEK); if (bit_test(pEntry->day_of_week, 0) || bit_test(pEntry->day_of_week, 7)) { bit_set(pEntry->day_of_week, 0); bit_set(pEntry->day_of_week, 7); } return 0; } ENTRY *add_entry(void) { ENTRY *pEntry; pEntry = (ENTRY *)malloc(sizeof(ENTRY)); if (NULL == pEntry) { return NULL; } memset(pEntry, 0, sizeof(ENTRY)); pEntry->next = NULL; if (NULL == head) head = pEntry; else tail->next = pEntry; tail = pEntry; return pEntry; } void del_entry() { ENTRY *pEntry; if (NULL == head) return; |
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