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#include <stdlib.h>
#include <string.h>
#include "errcatch.h"
#include "halt.h"
#include "modes.h"
#include "orangutan_shim.h"
w2_s_error *g_w2_error_buffer[W2_ERROR_BUFFER_SIZE] = {};
uint8_t g_w2_error_index = 0;
uint8_t g_w2_error_offset = 0;
uint8_t g_w2_error_buffer_full = 0;
uint8_t g_w2_error_uncaught = 0;
void w2_errcatch_main() {
while (g_w2_error_offset != g_w2_error_index) {
w2_s_error *error = g_w2_error_buffer[g_w2_error_offset];
w2_errcatch_handle_error(error);
g_w2_error_offset = (g_w2_error_offset + 1) % W2_ERROR_BUFFER_SIZE;
}
if (g_w2_error_buffer_full) {
w2_errcatch_throw(W2_E_WARN_ERR_BUFFER_FULL);
g_w2_error_buffer_full = 0;
}
if (g_w2_error_uncaught) {
w2_errcatch_throw(W2_E_WARN_UNCAUGHT_ERROR);
g_w2_error_uncaught = 0;
}
}
w2_s_error *w2_alloc_error(enum w2_e_errorcodes code, uint16_t length, const char *message) {
w2_s_error *error = malloc(sizeof(w2_s_error) + length);
memcpy(error, &(w2_s_error const){.code = code, .message_length = length}, sizeof(w2_s_error));
strncpy(error->message, message, length);
return error;
}
void w2_errcatch_throw(enum w2_e_errorcodes code) { w2_errcatch_throw_msg(code, 0, ""); }
void w2_errcatch_throw_msg(enum w2_e_errorcodes code, uint16_t length, const char *message) {
uint8_t next_index = (g_w2_error_index + 1) % W2_ERROR_BUFFER_SIZE;
g_w2_error_buffer_full = next_index == g_w2_error_offset;
free(g_w2_error_buffer[g_w2_error_index]);
w2_s_error *error = w2_alloc_error(code, length, message);
g_w2_error_buffer[g_w2_error_index] = error;
if (g_w2_error_buffer_full) return;
g_w2_error_index = next_index;
}
void w2_errcatch_handle_error(w2_s_error *error) {
uint8_t severity = error->code & W2_E_TYPE_MASK;
// trigger emergency mode for critical errors
if ((severity ^ W2_E_TYPE_CRIT) == 0) g_w2_current_mode = &w2_mode_halt;
// TODO: handle more error types
switch (error->code) {
case W2_E_WARN_UNCAUGHT_ERROR: {
break;
}
default: {
g_w2_error_uncaught = 1;
#ifdef W2_SIM
simwarn("Uncaught/unhandled error found with code 0x%02x\n", error->code);
#endif
}
}
// TODO: forward error to sercomm
return;
}
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