C library to serialize versioned structured data, performing fast variable-length encoding for integers to reduce message size.

Examples ================================================

=== Serialize a message with payload containing an integer, an unsigned long long, a float, an integer array and a string with message tag 1 into a buffer ===

// create a message buffer with tag 1

int message_tag = 1;
progbuf_h buf = progbuf_alloc (message_tag);

// serialize a long value

long long_val = 10;
int ret = progbuf_set_long (buf, long_val);
assert (ret == PROGBUF_SUCCESS);

// serialize an unsigned long long value

unsigned long long ulonglong_val = 0xFFFFFFFFFFFFFFFF;
ret = progbuf_set_ulonglong (buf, ulonglong_val);
assert (ret == PROGBUF_SUCCESS);

// serialize a float value

float float_val = 1.123;
ret = progbuf_set_float (buf, float_val);
assert (ret == PROGBUF_SUCCESS);

// serialize an integer array

const int intarr_val[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
const size_t intarr_size = sizeof (intarr_val) / sizeof (int);
ret = progbuf_set_int_array (buf, intarr_val, intarr_size);
assert (ret == PROGBUF_SUCCESS);

// serialize a string

const char *string_val = "abcdefghij";
ret = progbuf_set_string (buf, string_val);
assert (ret == PROGBUF_SUCCESS);

// get message size and buffer to send over network

size_t message_size;
void *message_buffer;
ret = progbuf_own_buffer(buf, &message_buffer, &message_size);
assert (ret == PROGBUF_SUCCESS);

// free the memory 

ret = progbuf_free (buf);
assert (ret == PROGBUF_SUCCESS);

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See check_progbuf.c file for more code samples.