From 7fb5b6a19b06dc5b0a7f32261551b206b1e6a563 Mon Sep 17 00:00:00 2001
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From: Hauke Mehrtens <hauke@hauke-m.de>
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Date: Sun, 8 Jan 2017 19:24:26 +0100
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Subject: [PATCH 3/3] src: move OCClientResponse from stack to heap
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OCClientResponse is about 50KByte and should not be stored on the
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stack. On LEDE with MIPS, musl libc this causes a segmentation fault.
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Moving this structure to the heap is the simple solution for this
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problem, but this structure should be shrinked.
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Change-Id: I7887f93450f45b8031fcdfffb9ee2214fc3d5dd2
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Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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---
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resource/src/InProcServerWrapper.cpp | 44 +++++++++++++++++++++---------------
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1 file changed, 26 insertions(+), 18 deletions(-)
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--- a/resource/src/InProcServerWrapper.cpp
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+++ b/resource/src/InProcServerWrapper.cpp
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@@ -568,51 +568,58 @@ namespace OC
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}
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else
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{
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- OCEntityHandlerResponse response;
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+ OCEntityHandlerResponse *response = NULL;
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+
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+ response = (OCEntityHandlerResponse *)OICCalloc(1, sizeof(*response));
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+ if (!response) {
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+ result = OC_STACK_MALFORMED_RESPONSE;
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+ throw OCException(OC::Exception::STR_NULL_RESPONSE, OC_STACK_MALFORMED_RESPONSE);
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+ }
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+
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// OCRepPayload* payLoad = pResponse->getPayload();
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HeaderOptions serverHeaderOptions = pResponse->getHeaderOptions();
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- response.requestHandle = pResponse->getRequestHandle();
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- response.resourceHandle = pResponse->getResourceHandle();
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- response.ehResult = pResponse->getResponseResult();
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+ response->requestHandle = pResponse->getRequestHandle();
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+ response->resourceHandle = pResponse->getResourceHandle();
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+ response->ehResult = pResponse->getResponseResult();
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- response.payload = reinterpret_cast<OCPayload*>(pResponse->getPayload());
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+ response->payload = reinterpret_cast<OCPayload*>(pResponse->getPayload());
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- response.persistentBufferFlag = 0;
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+ response->persistentBufferFlag = 0;
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- response.numSendVendorSpecificHeaderOptions = serverHeaderOptions.size();
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+ response->numSendVendorSpecificHeaderOptions = serverHeaderOptions.size();
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int i = 0;
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for (auto it=serverHeaderOptions.begin(); it != serverHeaderOptions.end(); ++it)
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{
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- response.sendVendorSpecificHeaderOptions[i].protocolID = OC_COAP_ID;
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- response.sendVendorSpecificHeaderOptions[i].optionID =
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+ response->sendVendorSpecificHeaderOptions[i].protocolID = OC_COAP_ID;
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+ response->sendVendorSpecificHeaderOptions[i].optionID =
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static_cast<uint16_t>(it->getOptionID());
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- response.sendVendorSpecificHeaderOptions[i].optionLength =
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+ response->sendVendorSpecificHeaderOptions[i].optionLength =
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(it->getOptionData()).length() + 1;
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std::string optionData = it->getOptionData();
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std::copy(optionData.begin(),
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optionData.end(),
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- response.sendVendorSpecificHeaderOptions[i].optionData);
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- response.sendVendorSpecificHeaderOptions[i].optionData[it->getOptionData().length()]
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+ response->sendVendorSpecificHeaderOptions[i].optionData);
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+ response->sendVendorSpecificHeaderOptions[i].optionData[it->getOptionData().length()]
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= '\0';
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i++;
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}
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- if(OC_EH_RESOURCE_CREATED == response.ehResult)
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+ if(OC_EH_RESOURCE_CREATED == response->ehResult)
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{
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- pResponse->getNewResourceUri().copy(response.resourceUri,
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- sizeof (response.resourceUri) - 1);
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- response.resourceUri[pResponse->getNewResourceUri().length()] = '\0';
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+ pResponse->getNewResourceUri().copy(response->resourceUri,
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+ sizeof (response->resourceUri) - 1);
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+ response->resourceUri[pResponse->getNewResourceUri().length()] = '\0';
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}
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if(cLock)
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{
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std::lock_guard<std::recursive_mutex> lock(*cLock);
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- result = OCDoResponse(&response);
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+ result = OCDoResponse(response);
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}
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else
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{
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- OICFree(response.payload);
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+ OICFree(response->payload);
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result = OC_STACK_ERROR;
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}
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@@ -620,6 +627,7 @@ namespace OC
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{
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oclog() << "Error sending response\n";
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}
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+ OICFree(response);
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return result;
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}
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}
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