Memory leak in SDL2 - sdl-2

Question

I'm trying to solve this one but I am stumped. When I continuously hover over an object, the ram usage increases. The hover code is below:
//Small memory leak here. Need to figure this out.
void PlayerInteraction::InteractionControllerHover(std::string interactionMessage) {
SDL_DestroyTexture(Scene1::ftexture);
SDL_FreeSurface(Scene1::fsurface);
const char* im = interactionMessage.c_str();
if (interactionMessage != "" ) {
int interactionMessagelength = interactionMessage.length();
Scene1::textRect = { 500, 610, interactionMessagelength * 10, 20 };
Scene1::fsurface = TTF_RenderText_Solid(Scene1::font, im, Scene1::fcolor);
Scene1::ftexture = SDL_CreateTextureFromSurface(Scene1::renderer, Scene1::fsurface);
//_sleep(70) seems to slow the leak down.
}
}
if I add _sleep(70) to the code, the memory leak is much slower, however I can't figure out why its leaking because I am destroying the texture each time the hover occurs. I don't like adding sleep because it causes other issues. Any advice?
//Mouse Hover Game Interaction.
case SDL_MOUSEMOTION:
//Event Motion coordinates. Where the mouse moves on the screen.
x = event.motion.x;
y = event.motion.y;
gd = gdSprite.x;
gy = gdSprite.y;
//This addresses the movement to the left issue where the player never reaches to destination and prevents hover interaction.
if (playerMessage != true && interactionMessage == "") {
//Prevents sleep from kicking in when walking to a target.
if (gdSprite.x < gd && gdSprite.y < y || gdSprite.x > gd && gdSprite.y > y) {
ftexture = SDL_CreateTextureFromSurface(renderer, fsurface); //Potentially fixes sprite appearing in text.
SDL_DestroyTexture(ftexture);
playerIsMoving = 0;
}
else {
ftexture = SDL_CreateTextureFromSurface(renderer,fsurface); //Potentially fixes sprite appearing in text.
SDL_DestroyTexture(ftexture);
SDL_DestroyTexture(Textures::spriteTexture);
Textures::spriteTexture = SDL_CreateTextureFromSurface(renderer, Textures::spriteDown1); //Makes player face you when you are hovering.
}
interactionMessage = pob.HoverObjects(x, y, scene, gd, gy);
}
if (interactionMessage != "" && playerIsMoving !=1) {
_sleep(70); //reduces memory leak when repeatedly hovering over objects in quick succession.
pi.InteractionControllerHover(interactionMessage);
}
break;
case SDL_KEYDOWN:
switch (event.key.keysym.sym)
{
case SDLK_ESCAPE:
case SDLK_q:
gameover = 1;
break;
}
break;
}
}

Answer 1

Thanks for the advice. This seems to have fixed the problem:
void PlayerInteraction::InteractionControllerHover(std::string interactionMessage) {
const char* im = interactionMessage.c_str();
if (interactionMessage != "" ) {
int interactionMessagelength = interactionMessage.length();
Scene1::textRect = { 500, 610, interactionMessagelength * 10, 20 }; // The * 10, 20 is a mathematical way of setting the text width depending on the length of the text.
Scene1::fsurface = TTF_RenderText_Solid(Scene1::font, im, Scene1::fcolor);
Scene1::ftexture = SDL_CreateTextureFromSurface(Scene1::renderer, Scene1::fsurface);
SDL_FreeSurface(Scene1::fsurface);
}
//Mouse Hover Game Interaction.
case SDL_MOUSEMOTION:
//Event Motion coordinates. Where the mouse moves on the screen.
x = event.motion.x;
y = event.motion.y;
gd = gdSprite.x;
gy = gdSprite.y;
//This addresses the movement to the left issue where the player never reaches to destination and prevents hover interaction.
if (playerMessage != true && interactionMessage == "") {
//Prevents sleep from kicking in when walking to a target.
if (gdSprite.x < gd && gdSprite.y < y || gdSprite.x > gd && gdSprite.y > y) {
SDL_DestroyTexture(ftexture);
playerIsMoving = 0;
}
else {
SDL_DestroyTexture(ftexture);
SDL_DestroyTexture(Textures::spriteTexture);
Textures::spriteTexture = SDL_CreateTextureFromSurface(renderer, Textures::spriteDown1); //Makes player face you when you are hovering.
}
interactionMessage = pob.HoverObjects(x, y, scene, gd, gy);
}
if (interactionMessage != "" && playerIsMoving !=1) {
pi.InteractionControllerHover(interactionMessage);
}
break;
case SDL_KEYDOWN:
switch (event.key.keysym.sym)
{
case SDLK_ESCAPE:
case SDLK_q:
gameover = 1;
break;
}
break;
}
}