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-rw-r--r--lib9p/tests/test_server/CMakeLists.txt1
-rw-r--r--lib9p/tests/test_server/fs_slowread.c101
-rw-r--r--lib9p/tests/test_server/fs_slowread.h22
-rw-r--r--lib9p/tests/test_server/main.c63
4 files changed, 171 insertions, 16 deletions
diff --git a/lib9p/tests/test_server/CMakeLists.txt b/lib9p/tests/test_server/CMakeLists.txt
index 19c8edb..eb16165 100644
--- a/lib9p/tests/test_server/CMakeLists.txt
+++ b/lib9p/tests/test_server/CMakeLists.txt
@@ -10,6 +10,7 @@ if (PICO_PLATFORM STREQUAL "host")
add_library(test_server_objs OBJECT
main.c
fs_shutdown.c
+ fs_slowread.c
)
target_include_directories(test_server_objs PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/config)
target_include_directories(test_server_objs PRIVATE ${CMAKE_CURRENT_BINARY_DIR})
diff --git a/lib9p/tests/test_server/fs_slowread.c b/lib9p/tests/test_server/fs_slowread.c
new file mode 100644
index 0000000..520edd2
--- /dev/null
+++ b/lib9p/tests/test_server/fs_slowread.c
@@ -0,0 +1,101 @@
+/* lib9p/tests/test_server/fs_slowread.c - slowread API endpoint
+ *
+ * Copyright (C) 2024-2025 Luke T. Shumaker <lukeshu@lukeshu.com>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+#include "fs_slowread.h"
+
+LO_IMPLEMENTATION_C(lib9p_srv_file, struct slowread_file, slowread_file, static);
+
+LO_IMPLEMENTATION_H(lib9p_srv_fio, struct slowread_file, slowread_file);
+LO_IMPLEMENTATION_C(lib9p_srv_fio, struct slowread_file, slowread_file, static);
+
+/* srv_file *******************************************************************/
+
+static void slowread_file_free(struct slowread_file *self) {
+ assert(self);
+}
+static struct lib9p_qid slowread_file_qid(struct slowread_file *self) {
+ assert(self);
+ return (struct lib9p_qid){
+ .type = LIB9P_QT_FILE,
+ .vers = 1,
+ .path = self->pathnum,
+ };
+}
+
+static struct lib9p_stat slowread_file_stat(struct slowread_file *self, struct lib9p_srv_ctx *ctx) {
+ assert(self);
+ assert(ctx);
+ return (struct lib9p_stat){
+ .kern_type = 0,
+ .kern_dev = 0,
+ .file_qid = slowread_file_qid(self),
+ .file_mode = 0444,
+ .file_atime = UTIL9P_ATIME,
+ .file_mtime = UTIL9P_MTIME,
+ .file_size = 6,
+ .file_name = lib9p_str(self->name),
+ .file_owner_uid = lib9p_str("root"),
+ .file_owner_gid = lib9p_str("root"),
+ .file_last_modified_uid = lib9p_str("root"),
+ .file_extension = lib9p_str(NULL),
+ .file_owner_n_uid = 0,
+ .file_owner_n_gid = 0,
+ .file_last_modified_n_uid = 0,
+ };
+}
+static void slowread_file_wstat(struct slowread_file *self, struct lib9p_srv_ctx *ctx, struct lib9p_stat) {
+ assert(self);
+ assert(ctx);
+ lib9p_error(&ctx->basectx, LINUX_EROFS, "cannot wstat API file");
+}
+static void slowread_file_remove(struct slowread_file *self, struct lib9p_srv_ctx *ctx) {
+ assert(self);
+ assert(ctx);
+ lib9p_error(&ctx->basectx, LINUX_EROFS, "cannot remove API file");
+}
+
+LIB9P_SRV_NOTDIR(struct slowread_file, slowread_file)
+
+static lo_interface lib9p_srv_fio slowread_file_fopen(struct slowread_file *self, struct lib9p_srv_ctx *ctx, bool, bool, bool) {
+ assert(self);
+ assert(ctx);
+ return lo_box_slowread_file_as_lib9p_srv_fio(self);
+}
+
+/* srv_fio ********************************************************************/
+
+static void slowread_file_iofree(struct slowread_file *self) {
+ assert(self);
+}
+
+static uint32_t slowread_file_iounit(struct slowread_file *self) {
+ assert(self);
+ return 0;
+}
+
+static uint32_t slowread_file_pwrite(struct slowread_file *LM_UNUSED(self),
+ struct lib9p_srv_ctx *LM_UNUSED(ctx),
+ void *LM_UNUSED(buf), uint32_t LM_UNUSED(byte_count),
+ uint64_t LM_UNUSED(offset)) {
+ assert_notreached("not writable");
+}
+static void slowread_file_pread(struct slowread_file *self, struct lib9p_srv_ctx *ctx,
+ uint32_t byte_count, uint64_t LM_UNUSED(byte_offset),
+ struct iovec *ret) {
+ assert(self);
+ assert(ctx);
+ assert(ret);
+
+ while (!lib9p_srv_flush_requested(ctx))
+ cr_yield();
+ if (self->flushable)
+ lib9p_srv_acknowledge_flush(ctx);
+ else
+ *ret = (struct iovec){
+ .iov_base = "Sloth\n",
+ .iov_len = 6 < byte_count ? 6 : byte_count,
+ };
+}
diff --git a/lib9p/tests/test_server/fs_slowread.h b/lib9p/tests/test_server/fs_slowread.h
new file mode 100644
index 0000000..ef4b65f
--- /dev/null
+++ b/lib9p/tests/test_server/fs_slowread.h
@@ -0,0 +1,22 @@
+/* lib9p/tests/test_server/fs_slowread.h - slowread API endpoint
+ *
+ * Copyright (C) 2024-2025 Luke T. Shumaker <lukeshu@lukeshu.com>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+#ifndef _LIB9P_TESTS_TEST_SERVER_FS_SLOWREAD_H_
+#define _LIB9P_TESTS_TEST_SERVER_FS_SLOWREAD_H_
+
+#include <util9p/static.h>
+#include <libhw/host_net.h>
+
+struct slowread_file {
+ char *name;
+ uint64_t pathnum;
+
+ bool flushable;
+};
+LO_IMPLEMENTATION_H(lib9p_srv_file, struct slowread_file, slowread_file);
+#define lo_box_slowread_file_as_lib9p_srv_file(obj) util9p_box(slowread_file, obj)
+
+#endif /* _LIB9P_TESTS_TEST_SERVER_FS_SLOWREAD_H_ */
diff --git a/lib9p/tests/test_server/main.c b/lib9p/tests/test_server/main.c
index 8d22a04..2743629 100644
--- a/lib9p/tests/test_server/main.c
+++ b/lib9p/tests/test_server/main.c
@@ -5,6 +5,8 @@
*/
#include <error.h>
+#include <errno.h>
+#include <stdio.h>
#include <stdlib.h> /* for atoi() */
#include <lib9p/srv.h>
@@ -18,6 +20,7 @@
#include "static.h"
#include "fs_shutdown.h"
+#include "fs_slowread.h"
/* configuration **************************************************************/
@@ -37,6 +40,7 @@ struct {
uint16_t port;
struct hostnet_tcp_listener listeners[CONFIG_SRV9P_NUM_CONNS];
struct lib9p_srv srv;
+ FILE *logstream;
} globals = {
.srv = (struct lib9p_srv){
.rootdir = get_root,
@@ -45,32 +49,33 @@ struct {
/* file tree ******************************************************************/
-enum { PATH_BASE = __COUNTER__ };
-#define PATH_COUNTER __COUNTER__ - PATH_BASE
-
-#define STATIC_FILE(STRNAME, SYMNAME) \
- UTIL9P_STATIC_FILE(PATH_COUNTER, STRNAME, \
+#define STATIC_FILE(N, STRNAME, SYMNAME) \
+ UTIL9P_STATIC_FILE(N, STRNAME, \
.data_start = _binary_static_##SYMNAME##_start, \
.data_end = _binary_static_##SYMNAME##_end)
-#define STATIC_DIR(STRNAME, ...) \
- UTIL9P_STATIC_DIR(PATH_COUNTER, STRNAME, __VA_ARGS__)
+#define STATIC_DIR(N, STRNAME, ...) \
+ UTIL9P_STATIC_DIR(N, STRNAME, __VA_ARGS__)
-#define API_FILE(STRNAME, SYMNAME, ...) \
+#define API_FILE(N, STRNAME, SYMNAME, ...) \
lo_box_##SYMNAME##_file_as_lib9p_srv_file(&((struct SYMNAME##_file){ \
.name = STRNAME, \
- .pathnum = PATH_COUNTER \
+ .pathnum = N \
__VA_OPT__(,) __VA_ARGS__ \
}))
struct lib9p_srv_file root =
- STATIC_DIR("",
- STATIC_DIR("Documentation",
- STATIC_FILE("x", Documentation_x_txt),
+ STATIC_DIR(1, "",
+ STATIC_DIR(2, "Documentation",
+ STATIC_FILE(3, "x", Documentation_x_txt),
),
- STATIC_FILE("README.md", README_md),
- API_FILE("shutdown", shutdown,
+ STATIC_FILE(4, "README.md", README_md),
+ API_FILE(5, "shutdown", shutdown,
.listeners = globals.listeners,
.nlisteners = LM_ARRAY_LEN(globals.listeners)),
+ API_FILE(6, "slowread", slowread,
+ .flushable = false),
+ API_FILE(7, "slowread-flushable", slowread,
+ .flushable = true),
);
static lo_interface lib9p_srv_file get_root(struct lib9p_srv_ctx *LM_UNUSED(ctx), struct lib9p_s LM_UNUSED(treename)) {
@@ -109,15 +114,41 @@ static COROUTINE init_cr(void *) {
cr_exit();
}
+static void log_fct(char character, void *_stream) {
+ FILE *stream = _stream;
+ putc(character, stream);
+ putchar(character);
+}
+
+static void log_msg(struct lib9p_srv_ctx *ctx, enum lib9p_msg_type typ, void *hostmsg) {
+ /* It sucks that %v trips -Wformat and -Wformat-extra-args
+ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47781 */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat"
+#pragma GCC diagnostic ignored "-Wformat-extra-args"
+ fmt_fctprintf(log_fct, globals.logstream,
+ "%c %v\n", typ % 2 ? '<' : '>',
+ lo_box_lib9p_msg_as_fmt_formatter(&ctx->basectx, typ, hostmsg));
+#pragma GCC diagnostic pop
+ fflush(globals.logstream);
+}
+
int main(int argc, char *argv[]) {
- if (argc != 2)
- error(2, 0, "usage: %s PORT_NUMBER", argv[0]);
+ if (argc != 3)
+ error(2, 0, "usage: %s PORT_NUMBER LOGFILE", argv[0]);
+
globals.port = atoi(argv[1]);
+ globals.logstream = fopen(argv[2], "w");
+ if (!globals.logstream)
+ error(2, errno, "fopen");
+ globals.srv.msglog = log_msg;
+
struct hostclock clock_monotonic = {
.clock_id = CLOCK_MONOTONIC,
};
bootclock = lo_box_hostclock_as_alarmclock(&clock_monotonic);
coroutine_add("init", init_cr, NULL);
coroutine_main();
+ fclose(globals.logstream);
return 0;
}