67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
// 19 april 2019
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#include "uipriv.h"
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static bool initialized = false;
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bool uiInit(void *options, uiInitError *err)
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{
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if (err == NULL)
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return false;
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if (err->Size != sizeof (uiInitError))
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return false;
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if (initialized)
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return uiprivInitReturnErrorf(err, "libui already initialized");
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if (options != NULL)
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return uiprivInitReturnErrorf(err, "options parameter to uiInit() must be NULL");
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if (!uiprivSysInit(options, err))
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return false;
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initialized = true;
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return true;
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}
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bool uiprivInitReturnErrorf(uiInitError *err, const char *fmt, ...)
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{
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int n;
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va_list ap;
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va_start(ap, fmt);
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n = uiprivVsnprintf(err->Message, 256, fmt, ap);
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va_end(ap);
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if (n < 0)
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uiprivInternalError("encoding error returning initialization error; this means something is very very wrong with libui itself");
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if (n >= 256) {
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// the formatted message is too long; truncate it
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err->Message[252] = '.';
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err->Message[253] = '.';
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err->Message[254] = '.';
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err->Message[255] = '\0';
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}
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return false;
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}
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void uiQueueMain(void (*f)(void *data), void *data)
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{
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if (!initialized) {
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uiprivProgrammerErrorNotInitialized(uiprivFunc);
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return;
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}
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uiprivSysQueueMain(f, data);
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}
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bool uiprivCheckInitializedAndThreadImpl(const char *func)
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{
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// While it does seem risky to not lock this, if this changes during the execution of this function it means only that it was changed from a different thread, and since it can only change from false to true, an error will be reported anyway.
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if (!initialized) {
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uiprivProgrammerErrorNotInitialized(func);
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return false;
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}
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if (!uiprivSysCheckThread()) {
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uiprivProgrammerErrorWrongThread(func);
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return false;
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}
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return true;
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}
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