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zero copy blob

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This commit is contained in:
John Alanbrook
2026-02-20 14:06:42 -06:00
parent c5ad4f0a99
commit ebfc89e072
11 changed files with 160 additions and 153 deletions
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14
playdate/file_playdate.c
View File

@@ -78,15 +78,13 @@ JSC_CCALL(file_read,
if (!pd_file) return JS_RaiseDisrupt(js, "file not initialized");
SDFile *f = js2sdfile(js, argv[0]);
unsigned int len = (unsigned int)js2number(js, argv[1]);
void *buf = malloc(len);
if (!buf) return JS_RaiseDisrupt(js, "malloc failed");
int read = pd_file->read(f, buf, len);
if (read < 0) {
free(buf);
void *out;
JSValue blob = js_new_blob_alloc(js, len, &out);
if (JS_IsException(blob)) return blob;
int bytes_read = pd_file->read(f, out, len);
if (bytes_read < 0)
return JS_NULL;
}
JSValue blob = js_new_blob_stoned_copy(js, buf, read);
free(buf);
js_blob_stone(blob, bytes_read);
return blob;
)

30
playdate/network_playdate.c
View File

@@ -139,15 +139,13 @@ JSC_CCALL(http_read,
if (!pd_network || !pd_network->http) return JS_RaiseDisrupt(js, "network not initialized");
HTTPConnection *conn = js2http(js, argv[0]);
unsigned int buflen = (unsigned int)js2number(js, argv[1]);
void *buf = malloc(buflen);
if (!buf) return JS_RaiseDisrupt(js, "malloc failed");
int read = pd_network->http->read(conn, buf, buflen);
if (read < 0) {
free(buf);
void *out;
JSValue blob = js_new_blob_alloc(js, buflen, &out);
if (JS_IsException(blob)) return blob;
int bytes_read = pd_network->http->read(conn, out, buflen);
if (bytes_read < 0)
return JS_NULL;
}
JSValue blob = js_new_blob_stoned_copy(js, buf, read);
free(buf);
js_blob_stone(blob, bytes_read);
return blob;
)
@@ -218,15 +216,13 @@ JSC_CCALL(tcp_read,
if (!pd_network || !pd_network->tcp) return JS_RaiseDisrupt(js, "network not initialized");
TCPConnection *conn = js2tcp(js, argv[0]);
size_t len = (size_t)js2number(js, argv[1]);
void *buf = malloc(len);
if (!buf) return JS_RaiseDisrupt(js, "malloc failed");
int read = pd_network->tcp->read(conn, buf, len);
if (read < 0) {
free(buf);
return JS_NewInt32(js, read); // Return error code
}
JSValue blob = js_new_blob_stoned_copy(js, buf, read);
free(buf);
void *out;
JSValue blob = js_new_blob_alloc(js, len, &out);
if (JS_IsException(blob)) return blob;
int bytes_read = pd_network->tcp->read(conn, out, len);
if (bytes_read < 0)
return JS_NewInt32(js, bytes_read); // Return error code
js_blob_stone(blob, bytes_read);
return blob;
)