Apple-2-Tools/NetDisk
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Support retrying when reading from the TCP connection gives an error.

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This is often what will happen if the server has terminated the connection (which many servers will do after a short time, e.g. one second).
This commit is contained in:
Stephen Heumann 2018-08-03 19:50:59 -05:00
parent a66b69154e
commit 9883d47517
2 changed files with 45 additions and 17 deletions
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39
http.c
View File

@ -104,22 +104,21 @@ top:;
/* Send out request */
result = NETWORK_ERROR;
unsigned int netErrors = 0;
do {
if (!sess->tcpLoggedIn || netErrors) {
if (StartTCPConnection(sess) != 0)
goto errorReturn;
netRetry:
if (!sess->tcpLoggedIn || netErrors) {
if (StartTCPConnection(sess) != 0)
goto errorReturn;
}
tcpError = TCPIPWriteTCP(sess->ipid, sess->httpRequest,
sess->httpRequestLen, TRUE, FALSE);
if (tcpError || toolerror()) {
if (netErrors == 0) {
netErrors++;
goto netRetry;
} else {
goto errorReturn;
}
tcpError = TCPIPWriteTCP(sess->ipid, sess->httpRequest,
sess->httpRequestLen, TRUE, FALSE);
if (tcpError || toolerror()) {
if (netErrors == 0) {
netErrors++;
continue;
} else {
goto errorReturn;
}
}
} while (0);
}
/* Get response status line & headers */
LongWord startTime = GetTick();
@ -129,8 +128,14 @@ top:;
(void*)((LongWord)"\p\r\n\r\n" | 0x80000000),
buffTypeNewHandle, (Ref)NULL,
0xFFFFFF, &rlrBuff);
if (tcpError || toolerror())
goto errorReturn;
if (tcpError || toolerror()) {
if (netErrors == 0) {
netErrors++;
goto netRetry;
} else {
goto errorReturn;
}
}
} while (rlrBuff.rlrBuffCount == 0
&& GetTick() - startTime < HTTP_RESPONSE_TIMEOUT * 60);

23
main.c
View File

@ -11,6 +11,7 @@
#include "seturl.h"
#include "hostname.h"
#include "tcpconnection.h"
#include "readtcp.h"
/*
http://archive.org/download/a2gs_System_1.0_1986_Apple_FW/System_1.0_1986_Apple_FW.2mg
@ -20,6 +21,7 @@ http://ia800505.us.archive.org/16/items/a2gs_System_1.0_1986_Apple_FW/System_1.0
char *defaultURL = "http://archive.org/download/a2gs_System_1.0_1986_Apple_FW/System_1.0_1986_Apple_FW.2mg";
char buf[512];
int main(int argc, char **argv) {
TLStartUp();
@ -71,6 +73,27 @@ int main(int argc, char **argv) {
printf("totalLength = %lu\n", sess.totalLength);
printf("contentLength = %lu\n", sess.contentLength);
}
InitReadTCP(&sess, sess.rangeEnd - sess.rangeStart + 1, buf);
while (TryReadTCP(&sess) == rsWaiting)
/* keep reading */ ;
LongWord startTime = GetTick();
while (GetTick() - startTime < 70)
/* wait */ ;
printf("Request 2:\n");
requestResult = DoHTTPRequest(&sess, startByte + 512, startByte + 1023);
printf("RequestResult %i\n", requestResult);
printf("Response code %lu\n", sess.responseCode);
if (requestResult == REQUEST_SUCCESSFUL) {
printf("rangeStart = %lu\n", sess.rangeStart);
printf("rangeEnd = %lu\n", sess.rangeEnd);
printf("totalLength = %lu\n", sess.totalLength);
printf("contentLength = %lu\n", sess.contentLength);
}
EndTCPConnection(&sess);