feat(lnm): start of processing code

lnm/src/http/loop_process.c

@@ -0,0 +1,60 @@
+#include "lnm/http/loop.h"
+#include "lnm/http/loop_internal.h"
+#include "lnm/http/req.h"
+#include "lnm/loop.h"
+#include "lnm/loop_internal.h"
+
+void lnm_http_loop_process_parse_req(lnm_http_conn *conn) {
+  lnm_http_loop_ctx *ctx = conn->ctx;
+
+  lnm_http_parse_err res = lnm_http_req_parse(
+      &ctx->req, &conn->r.buf[conn->r.read], conn->r.size - conn->r.read);
+
+  switch (res) {
+  case lnm_http_parse_err_ok:
+    ctx->state = lnm_http_loop_state_steps;
+    break;
+  case lnm_http_parse_err_incomplete:
+    // If the request is already the size of the read buffer, we close the
+    // request. Otherwise, we wait for anything read
+    if (conn->r.size - conn->r.read == LNM_LOOP_BUF_SIZE) {
+      conn->state = lnm_loop_state_end;
+    }
+    break;
+  case lnm_http_parse_err_invalid:
+    conn->state = lnm_loop_state_end;
+    break;
+  case lnm_http_parse_err_unknown_method:
+    // TODO set status code here
+    conn->state = lnm_loop_state_end;
+    break;
+  }
+}
+
+void lnm_http_loop_process_route(lnm_http_conn *conn) {}
+
+void lnm_http_loop_process_steps(lnm_http_conn *conn) {
+  /* lnm_http_loop_ctx *ctx = conn->ctx; */
+
+  /* while () */
+}
+
+void (*process_fns[])(lnm_http_conn *conn) = {
+    lnm_http_loop_process_parse_req,
+    lnm_http_loop_process_route,
+    lnm_http_loop_process_steps,
+};
+
+void lnm_http_loop_process(lnm_http_conn *conn) {
+  lnm_http_loop_ctx *ctx = conn->ctx;
+
+  lnm_http_loop_state cur_state;
+
+  // As long as the processing is able to advance to a next state, we keep
+  // progressing
+  do {
+    cur_state = ctx->state;
+
+    process_fns[cur_state](conn);
+  } while (conn->state == lnm_loop_state_req && cur_state != ctx->state);
+}