github.com/bananabytelabs/wazero@v0.0.0-20240105073314-54b22a776da8/imports/wasi_snapshot_preview1/sched.go (about)

     1  package wasi_snapshot_preview1
     2  
     3  import (
     4  	"context"
     5  
     6  	"github.com/bananabytelabs/wazero/api"
     7  	"github.com/bananabytelabs/wazero/experimental/sys"
     8  	"github.com/bananabytelabs/wazero/internal/wasip1"
     9  	"github.com/bananabytelabs/wazero/internal/wasm"
    10  )
    11  
    12  // schedYield is the WASI function named SchedYieldName which temporarily
    13  // yields execution of the calling thread.
    14  //
    15  // See https://github.com/WebAssembly/WASI/blob/snapshot-01/phases/snapshot/docs.md#-sched_yield---errno
    16  var schedYield = newHostFunc(wasip1.SchedYieldName, schedYieldFn, nil)
    17  
    18  func schedYieldFn(_ context.Context, mod api.Module, _ []uint64) sys.Errno {
    19  	sysCtx := mod.(*wasm.ModuleInstance).Sys
    20  	sysCtx.Osyield()
    21  	return 0
    22  }