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phantomptrandClaude Opus 5.5
c14782944d
Upload, install, convert and manage PS5 game packages over the network. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
48 lines
1.8 KiB
C
48 lines
1.8 KiB
C
#ifndef PS5UPLOAD2_SONY_API_LOCK_H
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#define PS5UPLOAD2_SONY_API_LOCK_H
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/*
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* Shared mutex serializing payload-process calls into Sony's
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* installer / launch / uninstall kernel stubs.
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*
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* Sony's kernel stubs (sceAppInstUtilInstallTitleDir,
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* sceAppInstUtilInstallByPackage, sceAppInstUtilGetInstallStatus,
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* sceLncUtilLaunchApp, sceSystemServiceLaunchApp,
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* sceAppInstUtilAppUnInstall) appear to hold internal locks briefly
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* on return on FW 9.60+. Concurrent calls from multiple mgmt
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* handler threads can hit the stubs while those locks are still
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* held, deadlocking the calling thread. This lock forces
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* one-at-a-time access regardless of which file the call site lives
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* in.
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*
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* The 200 µs post-call grace period (`SONY_API_POST_SLEEP_US`) lets
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* Sony's kernel stub release its internal locks before the next
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* caller enters; callers should sleep this duration *while still
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* holding the lock*, then unlock.
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*
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* Originally lived as a static `g_sony_api_mtx` inside register.c.
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* That left bgft.c's in-process AppInstUtil install/status paths
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* racing with register.c's title-install / launch / uninstall — a
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* concurrent register from one mgmt thread plus a `pkg install
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* status` poll from another could land in Sony's installer kernel
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* stubs simultaneously and trigger the documented deadlock.
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* Promoted to a shared extern in 2.2.61 after a multi-pass audit
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* surfaced the cross-mutex split.
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*/
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#include <pthread.h>
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extern pthread_mutex_t sony_api_lock;
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/* Post-call grace period — empirically tuned. usleep is FreeBSD-
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* native on the PS5 SDK so no dlsym dance. Caller pattern:
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*
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* pthread_mutex_lock(&sony_api_lock);
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* ... call sce* ...
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* usleep(SONY_API_POST_SLEEP_US);
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* pthread_mutex_unlock(&sony_api_lock);
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*/
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#define SONY_API_POST_SLEEP_US 200000u
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#endif /* PS5UPLOAD2_SONY_API_LOCK_H */
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