tracerepack: Don't fail when temp file is in different filesystem.

[apitrace] / json.hpp

diff --git a/json.hpp b/json.hpp
index 8619191e9a3518fde402926e1e65cb2125ea053a..d13793ebd64925f253c6a88e509b1213fbfc9e87 100644 (file)
--- a/json.hpp
+++ b/json.hpp
@@ -45,6 +45,7 @@ private:
 
     int level;
     bool value;
+    char space;
 
     void newline(void) {
         os << "\n";
@@ -55,6 +56,20 @@ private:
     void separator(void) {
         if (value) {
             os << ",";
+            switch (space) {
+            case '\0':
+                break;
+            case '\n':
+                newline();
+                break;
+            default:
+                os << space;
+                break;
+            }
+        } else {
+            if (space == '\n') {
+                newline();
+            }
         }
     }
 
@@ -128,11 +143,69 @@ private:
         os << "\"";
     }
 
+    void encodeBase64String(const unsigned char *bytes, size_t size) {
+        const char *table64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+        unsigned char c0, c1, c2, c3;
+        char buf[4];
+        unsigned written;
+
+        os << "\"";
+
+        written = 0;
+        while (size >= 3) {
+            c0 = bytes[0] >> 2;
+            c1 = ((bytes[0] & 0x03) << 4) | ((bytes[1] & 0xf0) >> 4);
+            c2 = ((bytes[1] & 0x0f) << 2) | ((bytes[2] & 0xc0) >> 6);
+            c3 = bytes[2] & 0x3f;
+
+            buf[0] = table64[c0];
+            buf[1] = table64[c1];
+            buf[2] = table64[c2];
+            buf[3] = table64[c3];
+
+            os.write(buf, 4);
+
+            bytes += 3;
+            size -= 3;
+            ++written;
+
+            if (written >= 76/4 && size) {
+                os << "\n";
+                written = 0;
+            }
+        }
+
+        if (size > 0) {
+            c0 = bytes[0] >> 2;
+            c1 = ((bytes[0] & 0x03) << 4);
+            buf[2] = '=';
+            buf[3] = '=';
+            
+            if (size > 1) {
+                c1 |= ((bytes[1] & 0xf0) >> 4);
+                c2 = ((bytes[1] & 0x0f) << 2);
+                if (size > 2) {
+                    c2 |= ((bytes[2] & 0xc0) >> 6);
+                    c3 = bytes[2] & 0x3f;
+                    buf[3] = table64[c3];
+                }
+                buf[2] = table64[c2];
+            }
+            buf[1] = table64[c1];
+            buf[0] = table64[c0];
+
+            os.write(buf, 4);
+        }
+
+        os << "\"";
+    }
+
 public:
     JSONWriter(std::ostream &_os) : 
         os(_os), 
         level(0),
-        value(false)
+        value(false),
+        space(0)
     {
         beginObject();
     }
@@ -155,9 +228,11 @@ public:
             newline();
         os << "}";
         value = true;
+        space = '\n';
     }
 
     inline void beginMember(const char * name) {
+        space = 0;
         separator();
         newline();
         escapeAsciiString(name);
@@ -168,42 +243,85 @@ public:
     inline void endMember(void) {
         assert(value);
         value = true;
+        space = 0;
     }
 
     inline void beginArray() {
         separator();
         os << "[";
+        ++level;
         value = false;
+        space = 0;
     }
 
     inline void endArray(void) {
+        --level;
+        if (space == '\n') {
+            newline();
+        }
         os << "]";
         value = true;
+        space = '\n';
     }
 
     inline void writeString(const char *s) {
         separator();
         escapeUnicodeString(s);
         value = true;
+        space = ' ';
+    }
+
+    inline void writeBase64(const void *bytes, size_t size) {
+        separator();
+        encodeBase64String((const unsigned char *)bytes, size);
+        value = true;
+        space = ' ';
     }
 
     inline void writeNull(void) {
         separator();
         os << "null";
         value = true;
+        space = ' ';
     }
 
     inline void writeBool(bool b) {
         separator();
         os << (b ? "true" : "false");
         value = true;
+        space = ' ';
     }
 
     template<class T>
-    void writeNumber(T n) {
-        separator();
-        os << std::dec << n;
-        value = true;
+    inline void writeNumber(T n) {
+        if (n != n) {
+            // NaN
+            writeNull();
+        } else {
+            separator();
+            os << std::dec << std::setprecision(9) << n;
+            value = true;
+            space = ' ';
+        }
+    }
+    
+    inline void writeStringMember(const char *name, const char *s) {
+        beginMember(name);
+        writeString(s);
+        endMember();
+    }
+
+    inline void writeBoolMember(const char *name, bool b) {
+        beginMember(name);
+        writeBool(b);
+        endMember();
+    }
+
+    template<class T>
+    inline void writeNumberMember(const char *name, T n) {
+        beginMember(name);
+        writeNumber(n);
+        endMember();
     }
 };