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author | Marti Bolivar <mbolivar@leaflabs.com> | 2011-04-04 13:40:25 -0400 |
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committer | Marti Bolivar <mbolivar@leaflabs.com> | 2011-04-04 13:40:25 -0400 |
commit | 47c53377292a4db28057fc6394c928cde3727e97 (patch) | |
tree | 363cc2e9d3f45f2add1bb2789ebaf284fdeae726 /examples/test-ring-buffer-insertion.cpp | |
parent | c37972e81501b0e8024b59e98b16c27a85597492 (diff) | |
download | librambutan-47c53377292a4db28057fc6394c928cde3727e97.tar.gz librambutan-47c53377292a4db28057fc6394c928cde3727e97.zip |
Committing basic ring_buffer test.
Diffstat (limited to 'examples/test-ring-buffer-insertion.cpp')
-rw-r--r-- | examples/test-ring-buffer-insertion.cpp | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/examples/test-ring-buffer-insertion.cpp b/examples/test-ring-buffer-insertion.cpp new file mode 100644 index 0000000..8372a96 --- /dev/null +++ b/examples/test-ring-buffer-insertion.cpp @@ -0,0 +1,114 @@ +/* + * Simple ring_buffer test. + * + * Does a basic test of functionality on rb_full_count(), rb_reset(), + * rb_push_insert(), and rb_safe_insert(). + * + * To test (no external hardware required): + * + * - Connect a serial monitor to SerialUSB + * - Press any key + * + * This file is released into the public domain. + */ + +#include "wirish.h" + +#include "ring_buffer.h" + +#define BUF_SIZE 64 +ring_buffer ring_buf; +ring_buffer *rb; +uint8 rb_buffer[BUF_SIZE]; + +void test_rb_push_insert(int num_bytes_to_insert); +void test_rb_safe_insert(int num_bytes_to_insert); +void test_rb_insertion_function(int num_bytes_to_insert, + int (*insertion_fn)(ring_buffer*, uint8), + const char insertion_fn_name[]); +void print_rb_contents(void); + +void setup() { + rb = &ring_buf; + rb_init(rb, BUF_SIZE, rb_buffer); + + while (!SerialUSB.available()) + ; + + SerialUSB.println("Beginning test."); + SerialUSB.println(); +} + +void loop() { + test_rb_push_insert(63); + SerialUSB.println("------------------------------"); + test_rb_push_insert(64); + SerialUSB.println("------------------------------"); + test_rb_safe_insert(63); + SerialUSB.println("------------------------------"); + test_rb_safe_insert(64); + SerialUSB.println("------------------------------"); + + SerialUSB.println(); + SerialUSB.println("Test finished."); + while (true) + ; +} + +void test_rb_push_insert(int num_bytes_to_insert) { + test_rb_insertion_function(num_bytes_to_insert, + rb_push_insert, + "rb_push_insert()"); +} + +void test_rb_safe_insert(int num_bytes_to_insert) { + test_rb_insertion_function(num_bytes_to_insert, + rb_safe_insert, + "rb_safe_insert()"); +} + +void test_rb_insertion_function(int num_bytes_to_insert, + int (*insertion_fn)(ring_buffer *, uint8), + const char insertion_fn_name[]) { + SerialUSB.println("resetting ring buffer."); + rb_reset(rb); + print_rb_contents(); + + SerialUSB.print(insertion_fn_name); + SerialUSB.print("-ing "); + SerialUSB.print(num_bytes_to_insert); + SerialUSB.println(" bytes."); + for (uint8 i = 1; i <= num_bytes_to_insert; i++) + insertion_fn(rb, i); + + uint16 count = rb_full_count(rb); + SerialUSB.print("rb_full_count(rb) = "); + SerialUSB.println(count); + + print_rb_contents(); +} + +void print_rb_contents() { + uint16 count = rb_full_count(rb); + SerialUSB.print("ring buffer contents: "); + for (uint16 i = 0; i < count; i++) { + SerialUSB.print((int)rb_remove(rb)); + if (i < count - 1) SerialUSB.print(", "); + } + SerialUSB.println(); +} + +// Force init to be called *first*, i.e. before static object allocation. +// Otherwise, statically allocated objects that need libmaple may fail. +__attribute__((constructor)) void premain() { + init(); +} + +int main(void) { + setup(); + + while (true) { + loop(); + } + return 0; +} |