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Further const correctness / String by reference passing cleanups (#6571)

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There are actually several instances where we pass in read-only
parameters as pass-by-value, where in the case of String() that
is inefficient as it involves copy-constructor/temp string creations.

We can avoid that, similarly to single character string concatenations
done via string literals instead of char literals.
This commit is contained in:
Dirk Mueller
2019-10-31 16:02:40 +01:00
committed by david gauchard
parent ba971fe7e9
commit 8bc5a10d6d
11 changed files with 78 additions and 75 deletions
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26
libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.h
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@ -147,8 +147,8 @@ public:
* Since both begin() functions take a reference to client as a parameter, you need to
* ensure the client object lives the entire time of the HTTPClient
*/
bool begin(WiFiClient &client, String url);
bool begin(WiFiClient &client, String host, uint16_t port, String uri = "/", bool https = false);
bool begin(WiFiClient &client, const String& url);
bool begin(WiFiClient &client, const String& host, uint16_t port, const String& uri = "/", bool https = false);
#if HTTPCLIENT_1_1_COMPATIBLE
// Plain HTTP connection, unencrypted
@ -175,20 +175,20 @@ public:
void setTimeout(uint16_t timeout);
void setFollowRedirects(bool follow);
void setRedirectLimit(uint16_t limit); // max redirects to follow for a single request
bool setURL(String url); // handy for handling redirects
bool setURL(const String& url); // handy for handling redirects
void useHTTP10(bool usehttp10 = true);
/// request handling
int GET();
int POST(uint8_t * payload, size_t size);
int POST(String payload);
int PUT(uint8_t * payload, size_t size);
int PUT(String payload);
int PATCH(uint8_t * payload, size_t size);
int PATCH(String payload);
int sendRequest(const char * type, String payload);
int sendRequest(const char * type, uint8_t * payload = NULL, size_t size = 0);
int sendRequest(const char * type, Stream * stream, size_t size = 0);
int POST(const uint8_t* payload, size_t size);
int POST(const String& payload);
int PUT(const uint8_t* payload, size_t size);
int PUT(const String& payload);
int PATCH(const uint8_t* payload, size_t size);
int PATCH(const String& payload);
int sendRequest(const char* type, const String& payload);
int sendRequest(const char* type, const uint8_t* payload = NULL, size_t size = 0);
int sendRequest(const char* type, Stream * stream, size_t size = 0);
void addHeader(const String& name, const String& value, bool first = false, bool replace = true);
@ -216,7 +216,7 @@ protected:
String value;
};
bool beginInternal(String url, const char* expectedProtocol);
bool beginInternal(const String& url, const char* expectedProtocol);
void disconnect(bool preserveClient = false);
void clear();
int returnError(int error);