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-rw-r--r--src/input/CurlInputPlugin.cxx173
1 files changed, 80 insertions, 93 deletions
diff --git a/src/input/CurlInputPlugin.cxx b/src/input/CurlInputPlugin.cxx
index 08df6cbd9..be919bb0e 100644
--- a/src/input/CurlInputPlugin.cxx
+++ b/src/input/CurlInputPlugin.cxx
@@ -42,6 +42,7 @@ extern "C" {
#include <string.h>
#include <errno.h>
+#include <list>
#include <forward_list>
#include <curl/curl.h>
@@ -69,7 +70,7 @@ static const size_t CURL_RESUME_AT = 384 * 1024;
/**
* Buffers created by input_curl_writefunction().
*/
-struct buffer {
+class CurlInputBuffer {
/** size of the payload */
size_t size;
@@ -77,7 +78,55 @@ struct buffer {
size_t consumed;
/** the payload */
- unsigned char data[sizeof(long)];
+ uint8_t *data;
+
+public:
+ CurlInputBuffer(const void *_data, size_t _size)
+ :size(_size), consumed(0), data(new uint8_t[size]) {
+ memcpy(data, _data, size);
+ }
+
+ ~CurlInputBuffer() {
+ delete[] data;
+ }
+
+ CurlInputBuffer(const CurlInputBuffer &) = delete;
+ CurlInputBuffer &operator=(const CurlInputBuffer &) = delete;
+
+ const void *Begin() const {
+ return data + consumed;
+ }
+
+ size_t TotalSize() const {
+ return size;
+ }
+
+ size_t Available() const {
+ return size - consumed;
+ }
+
+ /**
+ * Mark a part of the buffer as consumed.
+ *
+ * @return false if the buffer is now empty
+ */
+ bool Consume(size_t length) {
+ assert(consumed < size);
+
+ consumed += length;
+ if (consumed < size)
+ return true;
+
+ assert(consumed == size);
+ return false;
+ }
+
+ bool Read(void *dest, size_t length) {
+ assert(consumed + length <= size);
+
+ memcpy(dest, data + consumed, length);
+ return Consume(length);
+ }
};
struct input_curl {
@@ -93,7 +142,7 @@ struct input_curl {
/** list of buffers, where input_curl_writefunction() appends
to, and input_curl_read() reads from them */
- GQueue *buffers;
+ std::list<CurlInputBuffer> buffers;
/**
* Is the connection currently paused? That happens when the
@@ -119,7 +168,6 @@ struct input_curl {
input_curl(const char *url, GMutex *mutex, GCond *cond)
:range(nullptr), request_headers(nullptr),
- buffers(g_queue_new()),
paused(false),
meta_name(nullptr),
tag(nullptr),
@@ -707,32 +755,12 @@ curl_total_buffer_size(const struct input_curl *c)
{
size_t total = 0;
- for (GList *i = g_queue_peek_head_link(c->buffers);
- i != NULL; i = g_list_next(i)) {
- struct buffer *buffer = (struct buffer *)i->data;
- total += buffer->size;
- }
+ for (const auto &i : c->buffers)
+ total += i.TotalSize();
return total;
}
-static void
-buffer_free_callback(gpointer data, G_GNUC_UNUSED gpointer user_data)
-{
- struct buffer *buffer = (struct buffer *)data;
-
- assert(buffer->consumed <= buffer->size);
-
- g_free(buffer);
-}
-
-static void
-input_curl_flush_buffers(struct input_curl *c)
-{
- g_queue_foreach(c->buffers, buffer_free_callback, NULL);
- g_queue_clear(c->buffers);
-}
-
input_curl::~input_curl()
{
if (tag != NULL)
@@ -740,9 +768,6 @@ input_curl::~input_curl()
g_free(meta_name);
input_curl_easy_free_indirect(this);
- input_curl_flush_buffers(this);
-
- g_queue_free(buffers);
if (postponed_error != NULL)
g_error_free(postponed_error);
@@ -777,7 +802,7 @@ input_curl_tag(struct input_stream *is)
static bool
fill_buffer(struct input_curl *c, GError **error_r)
{
- while (c->easy != NULL && g_queue_is_empty(c->buffers))
+ while (c->easy != NULL && c->buffers.empty())
g_cond_wait(c->base.cond, c->base.mutex);
if (c->postponed_error != NULL) {
@@ -786,78 +811,50 @@ fill_buffer(struct input_curl *c, GError **error_r)
return false;
}
- return !g_queue_is_empty(c->buffers);
-}
-
-/**
- * Mark a part of the buffer object as consumed.
- */
-static struct buffer *
-consume_buffer(struct buffer *buffer, size_t length)
-{
- assert(buffer != NULL);
- assert(buffer->consumed < buffer->size);
-
- buffer->consumed += length;
- if (buffer->consumed < buffer->size)
- return buffer;
-
- assert(buffer->consumed == buffer->size);
-
- g_free(buffer);
-
- return NULL;
+ return !c->buffers.empty();
}
static size_t
-read_from_buffer(IcyMetaDataParser &icy, GQueue *buffers,
+read_from_buffer(IcyMetaDataParser &icy, std::list<CurlInputBuffer> &buffers,
void *dest0, size_t length)
{
- struct buffer *buffer = (struct buffer *)g_queue_pop_head(buffers);
+ auto &buffer = buffers.front();
uint8_t *dest = (uint8_t *)dest0;
size_t nbytes = 0;
- assert(buffer->size > 0);
- assert(buffer->consumed < buffer->size);
-
- if (length > buffer->size - buffer->consumed)
- length = buffer->size - buffer->consumed;
+ if (length > buffer.Available())
+ length = buffer.Available();
while (true) {
size_t chunk;
chunk = icy.Data(length);
if (chunk > 0) {
- memcpy(dest, buffer->data + buffer->consumed,
- chunk);
- buffer = consume_buffer(buffer, chunk);
+ const bool empty = !buffer.Read(dest, chunk);
nbytes += chunk;
dest += chunk;
length -= chunk;
- if (length == 0)
+ if (empty) {
+ buffers.pop_front();
break;
-
- assert(buffer != NULL);
+ }
}
- chunk = icy.Meta(buffer->data + buffer->consumed, length);
+ chunk = icy.Meta(buffer.Begin(), length);
if (chunk > 0) {
- buffer = consume_buffer(buffer, chunk);
+ const bool empty = !buffer.Consume(chunk);
length -= chunk;
- if (length == 0)
+ if (empty) {
+ buffers.pop_front();
break;
-
- assert(buffer != NULL);
+ }
}
}
- if (buffer != NULL)
- g_queue_push_head(buffers, buffer);
-
return nbytes;
}
@@ -884,7 +881,7 @@ input_curl_available(struct input_stream *is)
struct input_curl *c = (struct input_curl *)is;
return c->postponed_error != NULL || c->easy == NULL ||
- !g_queue_is_empty(c->buffers);
+ !c->buffers.empty();
}
static size_t
@@ -905,7 +902,7 @@ input_curl_read(struct input_stream *is, void *ptr, size_t size,
/* send buffer contents */
- while (size > 0 && !g_queue_is_empty(c->buffers)) {
+ while (size > 0 && !c->buffers.empty()) {
size_t copy = read_from_buffer(c->icy, c->buffers,
dest + nbytes, size);
@@ -941,7 +938,7 @@ input_curl_eof(G_GNUC_UNUSED struct input_stream *is)
{
struct input_curl *c = (struct input_curl *)is;
- return c->easy == NULL && g_queue_is_empty(c->buffers);
+ return c->easy == NULL && c->buffers.empty();
}
/** called by curl when new data is available */
@@ -1047,13 +1044,7 @@ input_curl_writefunction(void *ptr, size_t size, size_t nmemb, void *stream)
return CURL_WRITEFUNC_PAUSE;
}
- struct buffer *buffer = (struct buffer *)
- g_malloc(sizeof(*buffer) - sizeof(buffer->data) + size);
- buffer->size = size;
- buffer->consumed = 0;
- memcpy(buffer->data, ptr, size);
-
- g_queue_push_tail(c->buffers, buffer);
+ c->buffers.emplace_back(ptr, size);
c->base.ready = true;
g_cond_broadcast(c->base.cond);
@@ -1164,19 +1155,15 @@ input_curl_seek(struct input_stream *is, goffset offset, int whence,
/* check if we can fast-forward the buffer */
- while (offset > is->offset && !g_queue_is_empty(c->buffers)) {
- struct buffer *buffer;
- size_t length;
-
- buffer = (struct buffer *)g_queue_pop_head(c->buffers);
-
- length = buffer->size - buffer->consumed;
+ while (offset > is->offset && !c->buffers.empty()) {
+ auto &buffer = c->buffers.front();
+ size_t length = buffer.Available();
if (offset - is->offset < (goffset)length)
length = offset - is->offset;
- buffer = consume_buffer(buffer, length);
- if (buffer != NULL)
- g_queue_push_head(c->buffers, buffer);
+ const bool empty = !buffer.Consume(length);
+ if (empty)
+ c->buffers.pop_front();
is->offset += length;
}
@@ -1189,7 +1176,7 @@ input_curl_seek(struct input_stream *is, goffset offset, int whence,
g_mutex_unlock(c->base.mutex);
input_curl_easy_free_indirect(c);
- input_curl_flush_buffers(c);
+ c->buffers.clear();
is->offset = offset;
if (is->offset == is->size) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 06:38:43 +0000