完成了配置文件读取函数

添加了配置文件单元测试
配置文件读取函数单元测试完成

src/bus_io.c

@@ -8,7 +8,7 @@ int ReadInput(char* inputString)
     
     char src[20];
     int num;
-    sscanf(inputString,"%[a-z] %d",src,&num);
+    sscanf_s(inputString,"%[a-z] %d",src,&num);
     if (0 == strcmp("clock",src))
     {
         return IO_CLOCK;
@@ -37,5 +37,111 @@ int ReadInput(char* inputString)
         // 匹配失败则返回-1
         return -1;
     }
-    
+}
+
+rail_node_t *ReadConfigFile()
+{
+    FILE *config_file = NULL;
+    char buffer[30];
+    int total_station = 0;
+    int distance = 0;
+
+    config_file = fopen("dict.dic", "r");
+
+    // 循环读取文件的每一行
+    while(fgets(buffer, sizeof buffer, config_file) != NULL)
+    {
+        char first_char = buffer[0];
+        char *p;
+
+        switch (first_char)
+        {
+            case '#':
+                // 如果读取到#什么都不做
+                break;
+            case 'T':
+                // TOTAL_STATION
+                p = buffer;
+
+                // 把数字前面的所有字符全部干掉
+                while (*p < '0' || *p > '9')
+                {
+                    p++;
+                }
+
+                if(*p == '1' && *(p + 1) != '\n')
+                {
+                    total_station = 10;
+                }
+                else if(*(p + 1) == '\n')
+                {
+                    total_station = *p - 48;
+                }
+
+                break;
+            case 'S':
+                // STRATEGY
+                p = buffer;
+                // 将=前的字符全部略去
+                while(*p != '=')
+                {
+                    p++;
+                }
+                // =也去掉
+                p++;
+                // =和策略之间的空格也去掉
+                while(*p == ' ')
+                {
+                    p++;
+                }
+
+                if(*p == 'F' && *(p + 1) == 'C') //FCFS
+                {
+                    chosen_strategy = BUS_FCFS;
+                }
+                else if(*p == 'S' && *(p + 1) == 'S') //SSTF
+                {
+                    chosen_strategy = BUS_SSTF;
+                }
+                else if(*p == 'S' && *(p + 1) == 'C') //SCAN
+                {
+                    chosen_strategy = BUS_SCAN;
+                }
+                else
+                {
+                    // 读取失败
+                    chosen_strategy = -1;
+                }
+
+                break;
+            case 'D':
+                // DISTANCE
+                p = buffer;
+
+                // 把数字前面的所有字符全部干掉
+                while (*p < '0' || *p > '9')
+                {
+                    p++;
+                }
+
+                if(*(p + 1) == '\n')
+                {
+                    distance = *p - 48;
+                }
+
+                break;
+            default:
+                continue;
+        }
+
+    }
+
+    if(distance != 0 && total_station != 0)
+    {
+        return CreateRails(distance, total_station);
+    }
+    else
+    {
+        return NULL;
+    }
 }

src/controller.c

@@ -3,6 +3,5 @@
 //
 #include "controller.h"
 
-int BUS_TIME = 0;
-
-bus_query_t *target_query = NULL;
+bus_query_t *target_query = NULL;
+int chosen_strategy = -1;