Diff: main.cpp

Revision:

1:4d3a502a7e58

Parent:

0:c5ab0dc979fc

--- a/main.cpp	Wed Aug 24 14:29:47 2016 +0000
+++ b/main.cpp	Wed Aug 24 15:54:44 2016 +0000
@@ -3,44 +3,67 @@
 #include "MTSLog.h"
 #include <vector>
 
+Serial pc(USBTX, USBRX);
+
 int main()
 {
     mDot* dot;
     std::vector<mDot::mdot_file> files;
     mDot::mdot_file file;
     const char filename[] = "test_file.txt";
+    uint8_t buf[1024];
+    
+    pc.baud(115200);
 
     // get a mDot handle
     dot = mDot::getInstance();
+    dot->resetConfig();
+    dot->saveConfig();
+    
+    mts::MTSLog::setLogLevel(mts::MTSLog::INFO_LEVEL);
 
     // print library version information
     logInfo("version: %s", dot->getId().c_str());
 
+    logInfo("deleting user files");
     files = dot->listUserFiles();
-    if (files.size() == 0) {
-        logInfo("no user files");
-    } else {
-        logInfo("user files:");
-        for (std::vector<mDot::mdot_file>::iterator it = files.begin(); it != files.end(); it++) {
-            printf("\t%s [%d]\r\n", it->name, it->size);
-        }
-    }
-    
-    logInfo("deleting user files");
     for (std::vector<mDot::mdot_file>::iterator it = files.begin(); it != files.end(); it++) {
+        printf("\tdeleting %s [%d]\r\n", it->name, it->size);
         dot->deleteUserFile(it->name);
     }
 
-    while (true) {
-        uint8_t buf[2048];
+    memset(buf, 0x3B, sizeof(buf));
+
+    logInfo("creating 1kB file of 0x3B");
+    file = dot->openUserFile(filename, mDot::FM_RDWR | mDot::FM_CREAT | mDot::FM_APPEND);
+    if (file.fd < 0) {
+        logError("failed to open file");
+    } else {
+        if (dot->writeUserFile(file, (void*)buf, sizeof(buf)) != sizeof(buf)) {
+            logError("didn't write entire buffer");
+        }
 
-        memset(buf, 0x3B, sizeof(buf));
+        dot->closeUserFile(file);
+    }
 
-        file = dot->openUserFile(filename, mDot::FM_RDWR | mDot::FM_CREAT | mDot::FM_APPEND);
+    for (int i = 0; i < 10; i++) {
+        uint8_t buf[8];
+        uint32_t loc;
+        
+        memset(buf, 0xA2, sizeof(buf));
+        
+        file = dot->openUserFile(filename, mDot::FM_RDWR);
         if (file.fd < 0) {
             logError("failed to open file");
             break;
         } else {
+            loc = (uint32_t)(rand() % (file.size - sizeof(buf)));
+            logInfo("seeking to 0x%04X", loc);
+            if (! dot->seekUserFile(file, loc, SEEK_SET)) {
+                logError("seek failed");
+                break;
+            }
+            logInfo("writing %d '0xA2' bytes to 0x%04X", sizeof(buf), loc); 
             if (dot->writeUserFile(file, (void*)buf, sizeof(buf)) != sizeof(buf)) {
                 logError("didn't write entire buffer");
                 break;
@@ -48,27 +71,33 @@
 
             dot->closeUserFile(file);
         }
-
+    }
+    
+    file = dot->openUserFile(filename, mDot::FM_RDONLY);
+    if (file.fd < 0) {
+        logError("failed to open file");
+    } else {
+        uint8_t buf[16];
+        uint32_t read = 0;
+        uint32_t ret = 0;
 
-        files = dot->listUserFiles();
-        if (files.size() == 0) {
-            logInfo("no user files");
-        } else {
-            logInfo("user files:");
-            for (std::vector<mDot::mdot_file>::iterator it = files.begin(); it != files.end(); it++) {
-                printf("\t%s [%d]\r\n", it->name, it->size);
+        logInfo("file data:");
+        while (read < file.size) {
+            ret = dot->readUserFile(file, (void*)buf, sizeof(buf));
+            if (ret > 0) {
+                printf("0x%04X\t", read);
+                for (int i = 0; i < ret; i++) {
+                    printf("%02X ", buf[i]);
+                }
+                printf("\r\n");
+                read += ret;
+            } else {
+                logError("error reading file");
+                break;
             }
         }
-    }
 
-    files = dot->listUserFiles();
-    if (files.size() == 0) {
-        logInfo("no user files");
-    } else {
-        logInfo("user files:");
-        for (std::vector<mDot::mdot_file>::iterator it = files.begin(); it != files.end(); it++) {
-            printf("\t%s [%d]\r\n", it->name, it->size);
-        }
+        dot->closeUserFile(file);
     }
 
     return 0;