rtcGetDeviceError(3)

💖 rtcGetDeviceError — the manual page, bestie edition 💖

okay so we're doing rtcGetDeviceError(3) from the Embree Ray Tracing Kernels 3 manuals today and honestly? it's giving "small function, big feelings." let's get into it 🫶

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✨ NAME ✨

rtcGetDeviceError — returns the error code of the device. that's it, that's the whole job. queen of knowing what went wrong 💅

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🌸 SYNOPSIS 🌸

#include <embree3/rtcore.h>

RTCError rtcGetDeviceError(RTCDevice device);

look at her. two lines. iconic. ✨

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🦋 DESCRIPTION 🦋

okay so the vibe here is: every single thread gets its own error code, per device. not shared, not global, yours. main character energy but like, per-thread main character energy. 💅

here's how it works: if an error happens while you're calling an API function, that error code gets set to the error that just occurred — but only if it's not already storing a previous error. so the first one wins, no takebacks, no overwriting. 🎀

and then rtcGetDeviceError does the reading: it returns the error that's currently stored and clears the error code. so the next time you call it, you're getting a fresh slate. this is the whole point, bestie — it assures that the returned error code is always the first error occurred since the last invocation of rtcGetDeviceError. no cap. 🔥

the possible error codes she can hand back are:

• RTC_ERROR_NONE: no error occurred. the dream. the goal. the slay. ✨
• RTC_ERROR_UNKNOWN: an unknown error has occurred. mysterious. we don't know her. 💀
• RTC_ERROR_INVALID_ARGUMENT: an invalid argument was specified. you handed her something cursed, babe. 😭
• RTC_ERROR_INVALID_OPERATION: the operation is not allowed for the specified object. wrong move, wrong object. 🚫
• RTC_ERROR_OUT_OF_MEMORY: there is not enough memory left to complete the operation. she's full. no room. 🙈
• RTC_ERROR_UNSUPPORTED_CPU: the CPU is not supported as it does not support the lowest ISA Embree is compiled for. your silicon said "not today." 🧚
• RTC_ERROR_CANCELLED: the operation got canceled by a memory monitor callback or progress monitor callback function. someone pulled the plug. 🌈

now the ✨special case✨: when the device construction fails, rtcNewDevice returns NULL as device. and to detect the error code of such a failed device construction, you pass NULL as device to the rtcGetDeviceError function. that's the one and only time NULL is welcome here. 🫶

for all other invocations of rtcGetDeviceError, a proper device pointer must be specified. fr fr. no shortcuts. ⭐

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👑 EXIT STATUS 👑

returns the error code for the device. short, sweet, and to the point — she ate and left no crumbs. 💖

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🔥 SEE ALSO 🔥

• [rtcSetDeviceErrorFunction]

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and that's the page!! 💜 lowkey one of the most useful little calls in the whole API, iykyk.

courtesy of the Embree Ray Tracing Kernels 3 manual set — rtcGetDeviceError(3), bestie. go clear those error codes, mwah 🎀💅✨