main.cpp

00001 #include "mbed.h"
00002 #include "SDFileSystem.h"
00003 
00004 SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd"); // MOSI, MISO, SCK, CS
00005 Serial pc(USBTX, USBRX);
00006 FILE *fp;
00007 
00008 int file_copy(const char *src, const char *dst)
00009 {
00010     int retval = 0;
00011     int ch;
00012  
00013     FILE *fpsrc = fopen(src, "r");   // src file
00014     FILE *fpdst = fopen(dst, "w");   // dest file
00015     
00016     while (1) {                  // Copy src to dest
00017         ch = fgetc(fpsrc);       // until src EOF read.
00018         if (ch == EOF) break;
00019         fputc(ch, fpdst);
00020     }
00021     fclose(fpsrc);
00022     fclose(fpdst);
00023   
00024     fpdst = fopen(dst, "r");     // Reopen dest to insure
00025     if (fpdst == NULL) {          // that it was created.
00026         retval = -1;           // Return error.
00027     } else {
00028         fclose(fpdst);
00029         retval = 0;              // Return success.
00030     }
00031     return retval;
00032 }
00033 
00034 uint32_t do_list(const char *fsrc)
00035 {
00036     DIR *d = opendir(fsrc);
00037     struct dirent *p;
00038     uint32_t counter = 0;
00039 
00040     while ((p = readdir(d)) != NULL) {
00041         counter++;
00042         printf("%s\n", p->d_name);
00043     }
00044     closedir(d);
00045     return counter;
00046 }
00047 
00048 // bool is_folder(const char *fdir)
00049 // {
00050 //     DIR *dir = opendir(fdir);
00051 //     if (dir) {
00052 //         closedir(dir);
00053 //     }
00054 //     return (dir != NULL);
00055 
00056 // }
00057 
00058 // bool is_file(const char *ffile)
00059 // {
00060 //     FILE *fp = fopen(ffile, "r");
00061 //     if (fp) {
00062 //         fclose(fp);
00063 //     }
00064 //     return (fp != NULL);
00065 // }
00066 
00067 void do_remove(const char *fsrc)
00068 {
00069     DIR *d = opendir(fsrc);
00070     struct dirent *p;
00071     char path[30] = {0};
00072     while((p = readdir(d)) != NULL) {
00073         strcpy(path, fsrc);
00074         strcat(path, "/");
00075         strcat(path, p->d_name);
00076         remove(path);
00077     }
00078     closedir(d);
00079     remove(fsrc);
00080 }
00081 
00082 int main()
00083 {
00084     pc.printf("Initializing \n");
00085     wait(2);
00086 
00087     do_remove("/sd/test1"); /* clean up from the previous Lab 5 if was executed */
00088     if (do_list("/sd") == 0) {
00089         printf("No files/directories on the sd card.");
00090     }
00091 
00092     printf("\nCreating two folders. \n");
00093     mkdir("/sd/test1", 0777);
00094     mkdir("/sd/test2", 0777);
00095 
00096     fp = fopen("/sd/test1/1.txt", "w");
00097     if (fp == NULL) {
00098         pc.printf("Unable to write the file \n");
00099     } else {
00100         fprintf(fp, "1.txt in test 1");
00101         fclose(fp);
00102     }
00103 
00104     fp = fopen("/sd/test2/2.txt", "w");
00105     if (fp == NULL) {
00106         pc.printf("Unable to write the file \n");
00107     } else {
00108         fprintf(fp, "2.txt in test 2");
00109         fclose(fp);
00110     }
00111 
00112     printf("\nList all directories/files /sd.\n");
00113     do_list("/sd");
00114 
00115     printf("\nList all files within /sd/test1.\n");
00116     do_list("/sd/test1");
00117 
00118 
00119     printf("\nList all files within /sd/test2.\n");
00120     do_list("/sd/test2");
00121 
00122     int status = file_copy("/sd/test2/2.txt", "/sd/test1/2_copy.txt");
00123     if (status == -1) {
00124         printf("Error, file was not copied.\n");
00125     }
00126     printf("Removing test2 folder and 2.txt file inside.");
00127     remove("/sd/test2/2.txt");
00128     remove("/sd/test2");
00129 
00130     printf("\nList all directories/files /sd.\n");
00131     do_list("/sd");
00132 
00133     printf("\nList all files within /sd/test1.\n");
00134     do_list("/sd/test1");
00135 
00136     printf("\nEnd of complete Lab 5. \n");
00137 }