MFC中获取CUP内存磁盘使用情况.docx

获取CPU，内存使用率，磁盘相关信息 cpp view plaincopyprint?1.cpp view plaincopyprint?1. CPU信息 cpp view plaincopyprint?1. bool get_cpuoccupy(CPU_OCCUPY *cpust) /对无类型get函数含有一个形参结构体类弄的指针O 2. 3. FILE *fd; 4. char buff256; 5. CPU_OCCUPY *cpu_occupy; 6. cpu_occupy = cpust; 7.8. if (fd = fopen(/proc/stat, r) name, &cpu_occupy-user, 14. &cpu_occupy-nice, &cpu_occupy-system, &cpu_occupy-idle); 15.16. fclose(fd); 17. return true; 18. 19.20. /获取CPU频率 MHZ 21. bool get_cpu_info(unsigned int *total) 22. 23. FILE *fd; 24. char buff256; 25. char name128, Hz128, tmp128; 26. char *p; 27.28. *total = 0; 29. if (fd = fopen(/proc/cpuinfo, r) = 0) 30. return false; 31. memset(buff, 0, 256); 32. for (int i = 0; i user + o-nice + o-system + o-idle);/第一次(用户+优先级+系统+空闲)的时间再赋给od 8. newtotal = (unsigned long) (n-user + n-nice + n-system + n-idle);/第二次(用户+优先级+系统+空闲)的时间再赋给od 9.10. id = (unsigned long) (n-user - o-user); /用户第一次和第二次的时间之差再赋给id 11. nd = (unsigned long) (n-nice - o-nice); 12. sd = (unsigned long) (n-system - o-system);/系统第一次和第二次的时间之差再赋给sd 13. if (newtotal - oldtatal) != 0) 14. cpu_use = (int) (sd + id + nd) * 10000) / (newtotal - oldtatal); /(用户+系统)乖100)除(第一次和第二次的时间差)再赋给g_cpu_used 15. else 16. cpu_use = 0; 17. return cpu_use; 18. 内存信息cpp view plaincopyprint?1. bool get_memoccupy(MEM_OCCUPY *mem) /对无类型get函数含有一个形参结构体类弄的指针O 2. 3. FILE *fd; 4. char buff256, tmp20; 5. MEM_OCCUPY *m; 6. m = mem; 7.8. if (fd = fopen(/proc/meminfo, r) name, &m-total, tmp); 16.17. memset(buff, 0, 256); 18. fgets(buff, sizeof(buff), fd); /从fd文件中读取长度为buff的字符串再存到起始地址为buff这个空间里 19. sscanf(buff, %s %lu %s, m-name2, &m-free, tmp); 20.21. fclose(fd); /关闭文件fd 22. return true; 23. 调用函数cpp view plaincopyprint?1. bool qury_sys_resource(char *buf) 2. 3. CPU_OCCUPY cpu_stat1; 4. CPU_OCCUPY cpu_stat2; 5. MEM_OCCUPY mem_stat; 6. unsigned int cpu_MHZ; 7. char xml1024; 8. int cpu_used, memused; 9. float cpu_use_per = 0; 10.11. memset(&cpu_stat1, 0, sizeof(cpu_stat1); 12. memset(&cpu_stat2, 0, sizeof(cpu_stat2); 13. memset(&mem_stat, 0, sizeof(mem_stat); 14. memset(xml, 0, 1024); 15. /第一次获取cpu使用情况 16. if (!get_cpuoccupy(CPU_OCCUPY *) &cpu_stat1) 17. 18. if (debug_level) 19. 20. cout get cpu stat err! endl; 21. 22. sprintf( 23. buf, 24. HTTP/1.1 500 Server err nServer:Brainaire nConnection: close nContent-Type:text/html; charset=UTF-8 n n); 25. return false; 26. 27.28. /获取内存 29. if (!get_memoccupy(MEM_OCCUPY *) &mem_stat) 30. 31. if (debug_level) 32. 33. cout get memery stat err! endl; 34. 35. sprintf( 36. buf, 37. HTTP/1.1 500 Server err nServer:Brainaire nConnection: close nContent-Type:text/html; charset=UTF-8 n n); 38. return false; 39. 40.41. if (!get_cpu_info(&cpu_MHZ) 42. 43. if (debug_level) 44. 45. cout get cpu info err! endl; 46. 47. sprintf( 48. buf, 49. HTTP/1.1 500 Server err nServer:Brainaire nConnection: close nContent-Type:text/html; charset=UTF-8 n n); 50. return false; 51. 52. sleep(1); 53.54. /第二次获取cpu使用情况 55. if (!get_cpuoccupy(CPU_OCCUPY *) &cpu_stat2) 56. 57. if (debug_level) 58. 59. cout get cpu stat err! endl; 60. 61. sprintf( 62. buf, 63. HTTP/1.1 500 Server err nServer:Brainaire nConnection: close nContent-Type:text/html; charset=UTF-8 n n); 64. return false; 65. 66.67. /计算cpu使用率 68. cpu_used = cal_cpuoccupy(CPU_OCCUPY *) &cpu_stat1, 69. (CPU_OCCUPY *) &cpu_stat2); 70. cpu_use_per = (float) (cpu_used / 100.0); 71. /memery used 72. if (mem_stat.total - mem_stat.free) = 0) 73. 74. memused = 100; 75. 76. else 77. 78. memused = (int) (mem_stat.total - mem_stat.free) * 100 79. / mem_stat.total); 80. 81. sprintf( 82. xml, 83. n n n, 84. cpu_MHZ, cpu_use_per, mem_stat.total / 1024, memused); 85. sprintf( 86. buf, 87. HTTP/1.1 200 OK nServer:Brainaire nConnection: close nContent-type: xml/text; nContent-Length:%d n n%s, 88. strlen(xml), xml); 89. if (debug_level) 90. 91. cout memery total: mem_stat.total / 1024 , used: 92. memused endl; 93. cout cpu used = cpu_use_per % endl; 94. cout buf; 95. 96. return true; 97. 获取磁盘分区情况cpp view plaincopyprint?1. int get_disk_rw(const char *disk_name) 2. 3. FILE *fd; 4. char tmp256, name256, a256, flag256; 5. if (fd = fopen(/etc/mtab, r) = 0) 6. 7. if (debug_level) 8. 9. perror(/etc/mtab); 10. 11. return 0; 12. 13. while (fgets(tmp, sizeof(tmp), fd) 14. 15. memset(flag, 0, sizeof(flag); 16. sscanf(tmp, %s %s %s %s, name, a, a, flag); 17. if (strcmp(name, disk_name) = 0) 18. 19. / coutflagendl; 20. for (int i = 0; i 256; i+) 21. 22. if (flagi = r & (flagi + 1 = o) | flagi + 1 23. = , | flagi + 1 = 0) 24. 25. return 1; 26. 27. if (flagi + 1 = 0) 28. 29. return 0; 30. 31. 32. 33. 34. return 0; 35. 36.37. void qury_single_disk_info(const char *disk_path, char *buf) 38. 39. FILE *fd; 40. char tmp256, name256; 41. unsigned long long total, used, avail; 42. float ftotal, favail; 43. if (!(fd = popen(df, r) 44. 45. sprintf( 46. buf, 47. HTTP/1.1 500 Server err nServer:Brainaire nConnection: close nContent-Type:text/html; charset=UTF-8 n n); 48. return; 49. 50. while (fgets(tmp, sizeof(tmp), fd) 51. 52. sscanf(tmp, %s %llu %llu %llu, name, &total, &used, &avail); 53. if (strcmp(disk_path, name) = 0) 54. 55. ftotal = (float) (total / 1000000.0); 56. favail = (float) (avail / 1000000.0); 57. sprintf( 58. tmp, 59. n n n n, 60. disk_path, get_disk_rw(disk_path), ftotal, favail); 61. sprintf( 62. buf, 63. HTTP/1.1 200 OKnServer:BrainairenConnection: closenContent-type: xml/text; nContent-Length:%dnn%s, 64. strlen(tmp), tmp); 65. if (debug_level) 66. cout buf endl; 67. return; 68. 69. 70. sprintf(tmp, n n n); 71. sprintf( 72. buf, 73. HTTP/1.1 200 OK nServer:Brainaire nConnection: close nContent-type: xml/text; nContent-Length:%d n n%s, 74. strlen(tmp), tmp); 75. return; 76. 77.78. void qury_all_disk_info(char *buf) 79. 80. FILE *fd; 81. char tmp256, name256, res_bufMAX_BUF_SIZE; 82. unsigned long long total, used, avail; 83. float ftotal, favail; 84. memset(res_buf, 0, MAX_BUF_SIZE); 85. if (!(fd = popen(df, r) 86. 87. sprintf( 88. buf, 89. HTTP/1.1 500 Server err nServer:Brainaire nConnection: close nContent-Type:text/html;